Six precision tools for investors and long-term savers. No ads cluttering inputs, no signup walls — just clean math, instant answers, and charts that show exactly what compounding looks like.
How a single deposit compounds over time. Includes a visual growth curve.
Project the future value of a recurring monthly deposit at any rate.
Return on investment as a percentage and a dollar profit. CAGR included.
Units and revenue needed to cover your fixed and variable costs.
How many months until you hit a specific savings target.
Year-by-year projection of any investment at a fixed annual rate.
Most people make financial decisions on instinct — a rough sense of whether they can "afford it," whether a rate sounds reasonable, or whether they're saving "enough." But the difference between a good financial decision and a great one is almost always a matter of running the numbers.
A 1% difference in annual return, sustained over 30 years on a $50,000 investment, produces a $90,000 difference in outcome. A $200/month increase in retirement contributions started at age 25 versus age 35 can mean $150,000 more at retirement. These numbers are not intuitive — you have to calculate them.
These tools model idealized scenarios — constant interest rates, regular deposits, predictable costs. Real life is messier. Markets fluctuate. Expenses surprise you. Plans change. What calculators give you is a baseline: a clear picture of what a given plan looks like if the assumptions hold.
That baseline is enormously useful. It tells you whether a goal is achievable at all, what variables matter most, and how sensitive your outcome is to changes in rate, time, or contribution. Used honestly, that's enough to make significantly better decisions.
Use the Savings Growth calculator to see what $300/month becomes over 35 years. The chart usually settles the debate about whether to start now or wait.
Use the Savings Goal calculator to find out exactly how many months it takes to save $60,000 at your current pace — and whether moving to a high-yield account shaves meaningful time off.
Use the Break Even calculator to find the minimum viable price for your product given your fixed overhead and unit costs — before you commit to a pricing strategy.
Use the ROI calculator to evaluate what you actually earned on a stock, property, or fund — as a CAGR you can compare fairly to an index benchmark.
Use the Investment Return calculator to see your inheritance, bonus, or savings transfer grow year by year at a realistic rate — and see exactly when the compounding acceleration kicks in.
Use the Compound Interest calculator to understand why your finance professor keeps saying "start early." The difference between 10 years and 30 years at the same rate is not 3× — it's often 8–10×.
You received a bonus, inheritance, or sale proceeds and want to understand its long-term trajectory at a given rate.
orYou contribute regularly to a savings account, 401(k), or brokerage and want to project your future balance.
You're saving toward a down payment, emergency fund, or specific goal and need a concrete timeline.
You exited a position and want to know your actual return as a percentage and an annualized rate (CAGR).
You need to know the minimum sales volume to cover your costs before committing to a pricing strategy.
You're new to personal finance and want to build intuition about how compounding, returns, and savings work.
See how a single deposit grows when its interest is reinvested. Adjust frequency to compare daily vs. annual compounding.
Compound interest is the single most important concept in personal finance — and this calculator makes it visible. Enter a lump sum, an annual rate, and a time horizon, and you'll see exactly how your money grows when interest is earned not just on your original deposit, but on every dollar of interest that's already accumulated. That reinvestment loop is what creates the dramatic curve at the end of the chart.
The formula at work here is A = P(1 + r/n)nt — where P is your principal, r is the annual rate, n is how many times per year interest compounds, and t is the number of years. You can adjust the compounding frequency from annually to daily and watch the effective yield change. The difference is real but smaller than most people expect: what truly matters is the rate and, above all, the time.
This tool is most useful when you have a one-time sum to invest — an inheritance, a bonus, or a savings transfer — and you want an honest picture of where it goes over the long run. The growth chart doesn't just show the final number; it shows the shape of the journey. Most of the wealth arrives in the final years, often after a long stretch where progress feels invisible. Understanding that patiently is the whole lesson.
Sarah receives a work bonus and deposits it into an index fund instead of spending it. She doesn't touch it for 35 years, earning an average of 8% annually compounded monthly. The result surprises most people.
Her $15,000 grew to nearly $229,000 — she earned over $213,000 in interest without adding a single dollar. This is the practical case for investing early rather than waiting for "the right time."
Mark has $25,000 in an emergency fund he doesn't plan to touch for 5 years. He moves it into a certificate of deposit paying 4.5% compounded monthly, locking in a guaranteed return.
His $25,000 becomes $31,230 — $6,230 in guaranteed interest with zero risk. This compares favorably to a standard savings account at 0.5% which would have earned only $633 over the same period.
Instead of leaving $10,000 in a traditional bank account earning 0.01%, you move it to a high-yield savings account paying 4.8% APY. After 3 years you need it back — here's the difference.
The same $10,000 in a 0.01% account earns just $3 over 3 years. The high-yield account earns $1,524. Same money, same period — a 500× better outcome just from choosing the right account type.
Projecting at 12–15% because you've seen those returns recently leads to severe over-optimism. The S&P 500 has averaged ~10% nominal over a century — but many 10-year periods have returned far less. Use 6–7% for conservative planning; use higher rates only for best-case scenarios.
A balance of $500,000 in 30 years is not equivalent to $500,000 today. At 3% annual inflation, its real purchasing power is closer to $206,000 in today's terms. For long-horizon projections, consider using an inflation-adjusted rate (nominal rate minus ~3%) to see your real returns.
A 12% annual rate compounded monthly has an effective annual yield of 12.68%. The difference seems small, but over decades it compounds meaningfully. Always check the "Effective yield" stat in the results — that's the true annual return rate for your compounding setup.
This calculator models a smooth, constant return. Real investments are volatile — years of 20%+ gains followed by years of losses. The value of the projection is directional, not precise. Use it to understand the scale of outcomes and the importance of variables, not as a forecast.
Project the future value of a recurring monthly deposit. Built for retirement contributions, sinking funds, and any habit-based savings plan.
Where the compound interest calculator shows what a single deposit can become, this one answers a different question: what happens when you commit to saving the same amount every single month? That habit — consistent, automated, unremarkable — is how most people actually build wealth. This calculator shows you the math behind it.
The engine is the future value of an annuity formula: FV = PMT × [(1 + i)n − 1] / i, where PMT is your monthly deposit, i is the monthly interest rate, and n is the total number of months. Look at the chart after you calculate — the gap between the gold line (your total balance) and the baseline (what you personally deposited) represents your interest doing the work. Early on, that gap is thin. A decade in, it starts to matter. Two decades in, it often exceeds your own contributions.
The most useful thing you can do with this calculator is experiment with the monthly amount. Try bumping it by $100 or $200 and watch what happens at year 20 or 30. The sensitivity to contribution size, compounded over time, is usually shocking — and highly motivating. This is also the right tool for modeling a 401(k), Roth IRA, or any account where you're making regular contributions toward a long-term balance.
James starts contributing $500/month to his 401(k) at age 30, invested in a diversified fund averaging 7% annually. He never increases his contribution. What's waiting for him at 60?
James contributed $180,000 of his own money. The remaining $386,764 came from compound interest — more than twice what he put in. This is the power of time combined with consistency.
Priya wants to build an emergency fund and starts transferring $200/month to a high-yield savings account earning 4.5% APY. After 5 years, how much has she accumulated?
Priya deposited $12,000 and earned $1,387 in interest — a modest but meaningful bonus for choosing the right account type. Had she used a 0.1% standard account, she'd have earned just $30.
David didn't start investing until 40 but commits to $1,000/month in an index fund at 8%. He has 25 years until retirement. How far does higher discipline make up for the late start?
David contributed $300,000 and earned $651,026 in interest. Starting late but saving aggressively still produces a strong outcome — the lesson is that discipline can partially compensate for time, but not fully replace it.
Pausing 401(k) contributions when markets fall is one of the most costly mistakes in personal finance. You're not just missing deposits — you're missing them when prices are low, which means you buy fewer units at discounted prices. The calculator assumes continuous contributions; in reality, stopping even for one year can reduce your final balance by far more than one year's contributions.
Many 401(k) plans include employer matching — often 50–100% of your contribution up to a certain percentage of salary. This is free money that effectively doubles your contribution rate. If your employer matches 50% up to 6% of salary, your effective rate isn't $500/month — it's $750/month. Always contribute at least enough to capture the full match.
A projected balance of $500,000 is not $500,000/year in retirement — it's a balance you'll draw down over many years. A common rule of thumb is the 4% withdrawal rate, meaning $500,000 supports roughly $20,000/year in sustainable income. Plan both the accumulation (this calculator) and the distribution accordingly.
Measure how any investment performed. Enter what you put in and what you got back — see the return as a percentage, a dollar profit, and an annualized rate.
Return on investment is one of the most universal metrics in finance — but a raw percentage only tells part of the story. This calculator gives you both the total ROI and the annualized rate (CAGR), which is the number you actually need when comparing investments held for different lengths of time. A 50% total return looks great, but whether it happened in 2 years or 10 years changes everything.
The math is straightforward: ROI = (Final Value − Initial Cost) ÷ Initial Cost. The CAGR — compound annual growth rate — takes the total return and solves for the constant yearly rate that would have produced it: (Final / Initial)1/years − 1. Both numbers have their place. ROI is useful for a single closed transaction; CAGR is the right benchmark when you want to compare an investment to an index or evaluate your own track record over time.
When entering your final value, include everything you received — sale proceeds, dividends, rental income, coupon payments. Omitting income understates your true return. This calculator doesn't account for taxes or transaction fees; for a net-of-costs return, subtract those from your final value before entering it. The result will then reflect your actual take-home performance, which is the only number that really counts.
Lisa invested $8,000 in an S&P 500 index fund in 2019. She sold it for $13,400 in 2024, also receiving $420 in dividends over the period. What was her total return and annualized CAGR?
Total ROI was 72.75% — but the CAGR of 11.55% is the more meaningful number. It shows she outperformed the long-run S&P average slightly over this particular period. Note: the final value includes dividends ($13,400 + $420 = $13,820).
Ahmed bought a rental property for $220,000. He sold it for $310,000 after 7 years. During that time he collected $84,000 in net rental income (after expenses). His total return includes both appreciation and income.
The final value of $394,000 combines the sale price ($310,000) plus rental income ($84,000). ROI was 79.09% total. Always include income in your ROI calculation — ignoring it would make the return look like only 40.9%.
Nina invested $5,000 in a friend's startup at founding. Four years later the company was acquired and she received $31,000. High risk, but what did the math actually look like?
Total ROI was 520% — exceptional, but achieved with significant risk of total loss. The 57.8% CAGR shows why early-stage investing can be so powerful when it works, and why a single successful investment can outweigh several losses.
ROI calculated on price appreciation alone understates your true return. Dividends, rental income, interest payments, and any other cash received should be added to the final value. A stock that grew 20% but also paid 3% in dividends each year had a much higher true return than price alone suggests.
A 50% ROI over 2 years is very different from a 50% ROI over 10 years. Always use CAGR when comparing investments held for different durations. Without annualizing, you can't meaningfully compare performance across your portfolio.
Commissions, management fees, and capital gains taxes can significantly reduce your net return. For a precise net ROI, subtract these from your final value before calculating. This is especially important for real estate, where closing costs, agent fees, and improvement costs can be substantial.
Find the exact units and revenue you need to cover all costs. Essential for any product launch, pricing decision, or business feasibility check.
Break-even analysis answers the most fundamental question in business: how much do I need to sell before I stop losing money? It's not glamorous, but it's the calculation that separates ventures worth pursuing from ones that are structurally impossible — regardless of how hard you work or how good your product is.
The core concept is the contribution margin: the difference between your price per unit and what it costs to produce or deliver that unit. Every sale contributes that margin toward covering your fixed costs. Divide your fixed costs by the contribution margin and you get the break-even point — the minimum number of units you must sell. The formula is simple: Break-Even Units = Fixed Costs ÷ (Price − Variable Cost). Everything beyond that number is profit.
The most revealing thing this calculator can tell you isn't the break-even number itself — it's whether your contribution margin is viable at all. If the margin is negative (meaning each unit costs more to produce than you charge for it), you'll never break even at any volume. That's the calculator telling you to rethink your price or your cost structure before you go any further. And if the break-even volume is realistic given your market, you have a starting point for real planning.
Carlos creates an online course priced at $149. His fixed costs (platform fees, marketing tools, software subscriptions) are $800/month. Each sale has minimal variable costs — just payment processing at ~$5/sale.
With a contribution margin of $144 per sale, Carlos needs just 6 sales/month to cover all costs. Every sale beyond that is $144 profit. Digital products have high margins — the break-even is often surprisingly low.
A small café has fixed monthly costs of $12,000 (rent, staff, utilities). Each coffee costs $1.20 in ingredients and is sold for $5.50. How many coffees must they sell per month to cover costs?
That's about 93 cups per day. The 43% contribution margin ($4.30/$5.50) is decent for food service, but the high fixed costs mean volume matters enormously. A 10% price increase would reduce the break-even to ~2,523 cups.
Sara freelances full-time. Her monthly fixed costs (desk, tools, insurance, taxes set aside) are $3,500. She has no variable costs per client hour beyond her time. She charges $120/hour. How many billable hours does she need?
Sara only needs 30 billable hours/month (~7.5 hours/week) to cover her costs. Everything beyond that is profit. This is why high-rate service businesses with low variable costs can be very profitable with relatively modest client loads.
A common error is treating your own labor as a fixed cost when it's actually variable (you work more when you sell more). Similarly, shipping costs, credit card processing fees, and per-client software licenses are variable. Misclassifying them overstates your contribution margin and produces an unrealistically low break-even number.
If your price barely exceeds your variable cost, the contribution margin is tiny — meaning you need enormous volume to cover fixed costs. A $1 margin on a product with $5,000 in fixed costs requires 5,000 units just to break even. Price for a healthy margin first, then check if the resulting volume is achievable.
Break-even is the floor, not the target. You need to sell substantially more than break-even to generate a return on your time and investment. Calculate the sales volume needed to hit your target profit: (Fixed Costs + Target Profit) ÷ Contribution Margin. That's the real number to plan around.
Pick a target — a down payment, emergency fund, or sabbatical fund — and see exactly how long it takes to get there at your current pace.
There's a big difference between "saving for a house someday" and "I'll have my down payment by March 2028." This calculator makes the second kind of thinking possible. Give it a target, your current savings, what you can add each month, and the interest rate you're earning — and it tells you exactly when you'll get there.
Under the hood, it solves for time using the compound savings formula, accounting for both your existing balance growing with interest and your new contributions compounding alongside it. The result is a concrete number of months, a calendar date, and a breakdown of how much of the final balance came from you versus from interest. That last figure is often a small but meaningful bonus — especially if you've moved your savings to a high-yield account.
The most useful thing to do with this calculator is adjust the monthly contribution and watch the timeline shrink. Adding $200/month often cuts the timeline by a surprising amount — because you're not just depositing more, you're also earning interest on more for longer. If the result says "Never," it means your contribution is mathematically insufficient to ever close the gap. That's the calculator being honest: increase the contribution, lower the target, or find a higher-yield account. There's no other way through.
Tom and Emma want to buy a home. They need $60,000 for a 20% down payment, currently have $8,000 saved, and can put away $1,200/month in a high-yield savings account at 4.6% APY.
About 3 years and 2 months. If they boosted contributions to $1,500/month, the timeline drops to ~30 months — 8 months saved just by finding an extra $300/month. The interest earned covers roughly 2 months of contributions.
Rachel's monthly expenses are $3,800. She wants a 6-month emergency fund ($22,800). She has $4,000 saved and can contribute $600/month to a savings account at 4.2% APY.
About 2.5 years to full financial safety net. Rachel often wonders if she should invest instead of saving — but an emergency fund in a high-yield account at 4%+ is itself a reasonable short-term return with zero risk.
Miguel wants to take 3 months off to travel. He estimates he needs $15,000, has $2,500 put aside already, and can save $400/month in an account earning 3.8% APY.
Miguel will reach his travel fund in about 2.5 years. The calculator also tells him his estimated departure date — which is surprisingly motivating. Having a concrete date converts a vague dream into a plan.
Most people overestimate how much they can consistently save each month. Unexpected expenses, lifestyle inflation, and irregular months mean your actual average contribution is usually 10–20% lower than your planned amount. Build a buffer into your monthly contribution estimate, or use a slightly conservative figure and be pleasantly surprised.
The difference between 0.1% and 4.5% APY on a $20,000 balance over 3 years is roughly $2,700 in lost interest. For any goal more than 6 months away, a high-yield savings account, money market account, or short-term CD is almost always a better choice than a standard checking or savings account.
Your income increases, your expenses change, interest rates move. A savings plan set 2 years ago may now be ahead of or behind schedule. Recalculate every 6–12 months with your current balance, rate, and contribution amount to stay accurately on track.
Year-by-year projection of any investment compounding at a fixed annual rate. The detailed table makes long-term compounding tangible.
| Year | Opening balance | Annual gain | Closing balance | Cumulative gain |
|---|
This calculator does something the compound interest summary can't: it shows you where your gains actually come from, year by year. Enter an initial investment, an annual rate, and a time horizon — and you get a full ledger. Every row shows the opening balance, that year's gain, the closing balance, and the cumulative total. Scroll to the bottom, then look at the last 5 or 6 rows. That's where the story is.
The math compounds annually: each year's gain is a percentage of the prior year's closing balance, not the original principal. That's why the annual gain column keeps growing. In year 1 of a $25,000 investment at 8%, you earn $2,000. In year 25, you're earning over $12,000 — from the same original investment, with nothing added. That acceleration is the entire point, and the table makes it undeniable in a way a single final number never quite does.
Use this calculator when you're evaluating a one-time lump sum — a bonus, an inheritance, a property sale, or a retirement rollover. If you want to layer in ongoing monthly contributions on top of a lump sum, run this calculator and the Savings Growth calculator separately, then add the two final values together. Between the two, you'll have a complete picture of any long-term investment plan.
When changing jobs, Anna rolls her old 401(k) balance of $45,000 into an IRA invested in index funds returning 7% annually. She's 35. What does it grow to by retirement at 65?
$45,000 grows to $342,582 without Anna adding another dollar — purely from 30 years of compounding. This illustrates why rolling over old 401(k)s rather than cashing them out (and paying penalties and taxes) is almost always the right choice.
Ben inherits $30,000 and decides to invest it rather than spend it. He puts it in a balanced portfolio averaging 6.5% annually. He doesn't need the money for 20 years.
Ben's inheritance more than triples. The year-by-year table shows that years 15–20 generate more growth than years 1–10 combined — $40,000 of the $75,000 gain comes in the final 6 years. Patience is not just a virtue; it's a compounding strategy.
Same $20,000 starting amount. One investor puts it in bonds averaging 4%; another accepts more risk in equities averaging 10%. After 25 years, how large is the gap?
A 6% difference in annual return produces a $163,000 gap from the same $20,000 over 25 years. This is not an argument for recklessness — risk is real — but it shows why understanding your expected return matters enormously for long-horizon planning.
This calculator assumes the same return every single year. Real markets deliver 20% one year and -30% the next. The average matters over long periods, but sequence of returns matters too — particularly near retirement, when a large early loss can permanently impair your balance. Use this for direction and scale, not as a guarantee.
Withdrawing from a long-term investment early doesn't just cost you the amount withdrawn — it costs you all the future compounding on that amount. $10,000 withdrawn at year 5 of a 25-year investment at 8% costs you not $10,000 but closer to $46,600 in lost future value. The table makes this concrete: look at what any given year's closing balance becomes by the end.
A 1% annual management fee sounds trivial but reduces a 8% return to 7% — and over 25 years on $30,000, that single percentage point costs over $70,000 in final balance. Always subtract your fund's expense ratio from your expected return before projecting. This is one of the strongest arguments for low-cost index funds.
You don't need a finance degree to make good money decisions — but a handful of core concepts will make every calculator on this site more useful and every financial conversation less intimidating.
Compound interest means earning interest on your interest. When you deposit money and leave it alone, the interest it earns in year 1 becomes part of your balance — and earns its own interest in year 2. This cycle accelerates over time, producing the characteristic exponential curve on the growth chart.
A = P × (1 + r/n)^(n×t)P = principal · r = annual rate · n = compounds per year · t = years
The most important insight: time has more impact than rate. Doubling your rate is great, but doubling your time horizon produces a far larger outcome. This is why starting early — even with small amounts — consistently outperforms starting late with larger amounts.
ROI measures how much money an investment made relative to what it cost. A 50% ROI means you earned $0.50 for every $1 invested. Simple and universal — it works for stocks, real estate, businesses, or any decision where you put money in and got money back.
ROI = (Final Value − Initial Cost) ÷ Initial Cost × 100The limitation of simple ROI is that it ignores time. A 50% return over 2 years is dramatically better than 50% over 10 years. That's why CAGR (Compound Annual Growth Rate) is the preferred metric for comparing investments — it converts any total return into an annualized rate, putting everything on the same scale.
Future Value (FV) is what a sum of money today will be worth after growing at a given rate for a given time. Present Value (PV) is the reverse: what a future sum is worth in today's dollars, discounted for time and opportunity cost. Both concepts underpin every calculator on this site.
FV = PV × (1 + r)^tPresent value thinking is especially useful for evaluating big future expenses. If you'll need $100,000 in 15 years and expect to earn 7% on investments, the present value of that need is only about $36,245 — meaning you need to invest roughly $36,000 today, or build up to it with regular contributions.
An annuity is a series of equal payments made at regular intervals. When you deposit $500/month into a savings account or 401(k), you're building an ordinary annuity. The future value formula for annuities accounts for both the contributions and the compounding interest earned on each one.
FV = PMT × [(1 + i)^n − 1] ÷ iPMT = monthly payment · i = monthly rate · n = total months
What makes annuities powerful is that each contribution has a different compounding runway — your first deposit compounds for the full period, while your last deposit earns almost nothing. The early contributions do the heavy lifting, which is why increasing your savings rate in early years has an outsized effect on your final balance.
Break-even analysis separates costs into two types: fixed costs (rent, salaries, subscriptions — paid regardless of sales volume) and variable costs (materials, transaction fees — paid per unit sold). The difference between price and variable cost is called the contribution margin — how much each sale contributes toward covering fixed costs.
Break-Even Units = Fixed Costs ÷ (Price − Variable Cost)Once you've sold enough units to cover all fixed costs, you've broken even. Every unit beyond that generates profit equal to the contribution margin. This framework applies to any business, product, freelance service, or project — and it's the first calculation any entrepreneur should run before committing to a venture.
The single most important principle in finance: a dollar today is worth more than a dollar tomorrow. This is true for three reasons — money today can be invested to earn returns, inflation erodes purchasing power over time, and the future is uncertain. Every financial decision, at its core, involves weighing present costs against future benefits (or present benefits against future costs).
This principle explains why paying off high-interest debt immediately is almost always the right move (the "return" on paying off 20% credit card debt is a guaranteed 20%), why investing early beats investing more later, and why a dollar of savings in your 20s is worth far more than a dollar saved in your 40s. Understanding time value of money is the foundation for every financial decision you'll ever make.
A nominal interest rate is the stated rate — the number advertised by a bank or printed on a bond. The effective annual rate (EAR) is the actual rate you earn after accounting for compounding frequency. A 12% nominal rate compounded monthly has an effective rate of 12.68%.
EAR = (1 + r/n)^n − 1For savings accounts, the effective rate is usually expressed as APY (Annual Percentage Yield) — this is always the more accurate number to use when comparing accounts. For loans, lenders typically advertise the nominal APR; the effective cost after compounding is higher. Always compare APY to APY and APR to APR.
In finance, higher expected returns almost always come with higher risk — the chance of a worse outcome. A savings account at 4.5% offers near-certainty; a stock portfolio at 10% comes with years of significant losses along the way. Neither is universally "better" — the right answer depends on your timeline, your temperament, and your need for the money.
Diversification reduces risk without necessarily reducing expected return — by spreading investments across different assets, industries, and geographies, you ensure that no single bad outcome destroys your portfolio. This is the core argument for index funds: broad diversification at low cost, capturing the market's long-run return without betting on individual companies.
The calculators on this site use a single constant rate — which is a simplification. Real investing involves volatility, sequence risk, and uncertainty. Use these tools to understand direction and magnitude, then consult a financial advisor for a personalized plan that accounts for your actual risk tolerance.
Capitalize is a set of free, focused financial calculators built without ads cluttering the tools, without signup walls, and without any agenda beyond helping you understand the math behind your money decisions.
Most financial calculator sites are covered in pop-up ads, "talk to an advisor" prompts, and dark patterns designed to capture your email. We built Capitalize because we wanted the opposite: tools that load instantly, run in your browser with no data sent anywhere, and give you a straight answer.
These calculators are educational instruments — they help you build intuition about how money compounds, how returns are measured, and how plans hold up to scrutiny. They are not a substitute for professional financial advice, and they don't pretend to be.
Young professionals starting their first retirement contribution. Entrepreneurs stress-testing a pricing model. Parents saving for a down payment. Students learning personal finance. Anyone who wants clean math without the noise.
Every calculator runs entirely in your browser using standard financial formulas. No data is sent to a server. No account is required. Results update live as you type. The math is explained in the "Understanding" sections on each tool page.
No signups, no pop-ups, no required fields other than your inputs. Open the tool, use it, leave. That's the whole experience.
We use standard textbook formulas, explain each one, and flag when a result is impossible (e.g., a savings goal you can never reach at your current pace).
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We support the site with advertising. Ads appear above and below calculators — never inside them or interrupting your calculation flow.
We explain what the numbers mean and how to interpret them. We do not tell you what to do with your money — that's what licensed financial advisors are for.
Every tool on this site is free to use, forever, with no limitations. Financial literacy tools should be accessible to everyone.
Capitalize provides financial calculators for educational and informational purposes only. All results are based on mathematical models using the inputs you provide and assumed constant rates of return. Real-world investment returns vary and are not guaranteed. This site does not provide financial, investment, tax, or legal advice. Always consult a qualified financial professional before making significant financial decisions.