ROI Calculator
Investing & ReturnsProfit, ROI %, annualized return & more.
Return on investment: 80.00%
Inputs
Advanced options
- Total cost basis$10,000
- Net profit$8,000
Real return & break-even
$8,000 above break-even
Benchmark comparison
- Your final value$18,000
- Benchmark final value$14,693
Investment growth
How your cost basis grows to the final value along the annualized path, with the inflation-adjusted (real) value for comparison.
ROI timeline
Cumulative return at the end of each year of the holding period.
- Year 00.0%
- Year 112.5%
- Year 226.5%
- Year 342.3%
- Year 460.0%
- Year 580.0%
Simple vs compound annual return
The simple average splits the total return evenly across the years; the compound (CAGR) figure accounts for growth on growth. The gap is the effect of compounding.
- Simple average / year16.00%
- Compound (CAGR)12.47%
Nominal vs real ROI
Your headline (nominal) return next to the real return once inflation is stripped out.
- Nominal ROI80.00%
- Real ROI80.00%
Inflation impact
What your final value is worth in today's money, and how much purchasing power inflation quietly erodes.
- Nominal value$18,000
- Real value$18,000
- Lost to inflation$0
Sensitivity analysis
How your ROI would change if the final value came in higher or lower than expected.
- -20%44.0%
- -10%62.0%
- Your estimate80.0%
- +10%98.0%
- +20%116.0%
ROI summary
| Metric | Result |
|---|---|
| Return on investment | 80.00% |
| Return multiple | 1.80× |
| Net profit / loss | $8,000 |
| Annualized return (CAGR) | 12.47% |
| Simple annual ROI | 16.00% |
| Net ROI | 80.00% |
| Real ROI | 80.00% |
| Real annualized ROI | 12.47% |
| Total cost basis | $10,000 |
| Gross proceeds | $18,000 |
| Break-even value | $10,000 |
| Years to double | 5.9 years |
Growth breakdown
| Period | Value | Gain | ROI | Real value | Benchmark |
|---|---|---|---|---|---|
| Year 0 | $10,000 | $0 | 0.0% | $10,000 | $10,000 |
| Year 1 | $11,247 | $1,247 | 12.5% | $11,247 | $10,800 |
| Year 2 | $12,651 | $2,651 | 26.5% | $12,651 | $11,664 |
| Year 3 | $14,229 | $4,229 | 42.3% | $14,229 | $12,597 |
| Year 4 | $16,004 | $6,004 | 60.0% | $16,004 | $13,605 |
| Year 5 | $18,000 | $8,000 | 80.0% | $18,000 | $14,693 |
Figures are estimates for comparison and assume smooth growth within the holding period.
How ROI is calculated
Four steps turn your numbers into a comparable return.
- 1
Add up your cost basis — the initial investment plus any additional contributions and fees.
- 2
Add up what came back — the final value plus any income or dividends received.
- 3
Subtract the cost basis from the proceeds to get net profit, then divide by the cost basis for the ROI percentage.
- 4
Spread that return across the holding period to annualize it, and adjust for fees, taxes and inflation.
Formula
ROI = (Net profit ÷ Cost basis) × 100Annualized = (1 + ROI) ^ (1 ÷ years) − 1Real ROI = (1 + ROI) ÷ (1 + inflation)^years − 1Break-even value = Cost basis − IncomeWhere:
- Net profit
- Gross proceeds minus the cost basis.
- Cost basis
- Initial investment plus additional contributions and fees.
- Years
- The holding period, used to annualize the return.
Formula inputs & outputs
| Inputs | |
|---|---|
| Amount invested | $10,000 |
| Additional contributions | $0 |
| Additional costs & fees | $0 |
| Current / final value | $18,000 |
| Income / dividends | $0 |
| Holding period | 5.00 years |
| Tax on profit | 0.0% |
| Inflation rate | 0.0% |
| Benchmark return | 8.0% |
| Outputs | |
| Return on investment | 80.00% |
| Net profit / loss | $8,000 |
| Return multiple | 1.80× |
| Annualized return (CAGR) | 12.47% |
| Net ROI | 80.00% |
| Real ROI | 80.00% |
| Break-even value | $10,000 |
Example calculation
Suppose you put 10,000 into an investment and it is worth 18,000 five years later, with no fees or income. Your net profit is 8,000 — a total ROI of 80%. Annualized, that is a 12.47% compound return a year, noticeably below the 16% you would get by simply dividing 80% by five, because compounding does part of the work. The live box below recomputes every figure from your own inputs.
Your numbers
A cost basis of $10,000 worth $18,000 after 5.0 years is a $8,000 profit — a 80.00% total ROI, or 12.47% a year annualized.
Input definitions
- Amount invested
- Amount invested — what you originally put in.
- Current / final value
- Final value — what the investment is worth now or when sold.
- Additional contributions
- Additional contributions — extra capital added after the initial investment, also part of your cost basis.
- Additional costs & fees
- Costs & fees — extra money spent (commissions, fees), added to your cost basis.
- Income / dividends
- Income / dividends — cash received while holding, added to your return.
- Holding period
- Holding period — how long you held it, in years and months.
- Tax on profit
- Tax on profit — the rate applied to a positive profit.
- Benchmark return
- Benchmark return — an annual rate (e.g. a market index) used to judge whether your return was good.
Know what this estimate is based on
- Jurisdiction
- General mathematical model
- Scope and limitations
- Scenario model, not a forecast. Returns, volatility, inflation, fees, and taxes are assumptions and actual investment outcomes can be lower or negative.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Choose what to calculate, then enter the amount you invested and its current or final value. Start in the default ROI mode, or switch modes to solve backwards for the investment, final value, holding period, profit or return you would need to hit a goal.
- 02
Set the holding period in years and months to unlock the annualized (CAGR) return, and open Advanced options to add extra contributions, fees, income or dividends, a tax rate, an inflation rate and a benchmark to measure against.
- 03
Read your ROI percentage, net profit, return multiple and annualized return — with the real (inflation-adjusted) and after-tax figures beside them, and where your break-even value sits.
- 04
Explore the growth, nominal-vs-real and sensitivity charts, the year-by-year and fees-and-taxes tables, and save scenarios to compare investments side by side.
Formula
Cost basis = initial investment + additional contributions + fees. Gross proceeds = final value + income received. ROI = (gross proceeds − cost basis) ÷ cost basis. Return multiple = gross proceeds ÷ cost basis. Annualized ROI = (gross proceeds ÷ cost basis)^(1 ÷ years) − 1. Tax applies only to a positive profit in the calculator's optional tax view.
Example
Invest 10,000, add 500 of fees, and finish after two years with a value of 12,500 plus 500 of income. Cost basis is 10,500, gross proceeds are 13,000 and profit is 2,500. ROI is 23.81% and the equivalent annualized ROI is about 11.27%.
Definitions
- Cost basis
- All capital and fees counted as the investment's cost.
- Gross proceeds
- Final value plus dividends, interest, rent or other income received.
- ROI
- Total profit or loss as a percentage of cost basis.
- Return multiple
- Gross proceeds divided by cost basis; 1.5× means receiving one and a half times the amount invested.
- Annualized ROI
- The constant compound yearly rate equivalent to the total ROI over the holding period.
Good to know
What return on investment really measures
Return on investment is the most widely quoted number in all of finance, and also one of the most casually misused. At heart it answers a simple question: for every unit of money you committed, how much did you get back on top of it? You take what the investment is ultimately worth, subtract everything it cost you to get there, and express that gain as a percentage of the cost. A 10,000 stake that grows to 18,000 has handed you an 8,000 profit on a 10,000 outlay, which is an 80% return. The appeal is that the result is unit-free and portable: an 80% ROI means the same thing whether the stake was a hundred dollars or a hundred thousand, whether the asset was a stock, a rental property, a small business or a marketing campaign. That comparability is exactly why ROI travels so well between contexts, and also why it is so easy to abuse. The single percentage hides almost everything about how the result was produced — how long it took, what risks were run, what costs were swept under the rug, whether inflation ate into it. This calculator keeps the headline figure front and centre because it is genuinely useful, but it surrounds that figure with the context a bare percentage leaves out: the time taken, the annual equivalent, the effect of fees and tax, and what the same money was worth once inflation is accounted for. Read together, they turn a slogan into a measurement.
How this calculator works out your ROI
The engine begins by separating money out from money back. On the cost side it builds your cost basis: the initial amount invested, plus any further contributions you made along the way, plus the fees and commissions you paid to acquire and hold the asset. On the return side it adds the final value of the holding to any income — dividends, interest, rent — that it threw off while you owned it. Net profit is simply the return side minus the cost side, and ROI is that profit divided by the cost basis, multiplied by a hundred to read as a percentage. A closely related figure, the return multiple, divides the gross proceeds by the cost basis instead, so an 80% ROI is the same outcome as a 1.8× multiple — the language private-equity and venture investors prefer. Everything downstream is built on these two quantities. The annualized return reshapes the total into a yearly rate, the real return deflates it for inflation, the net return subtracts tax, and the break-even point is the value at which the return would be exactly zero. Because the whole model is just careful bookkeeping of what went in against what came out, it stays transparent: every figure on the screen can be traced back to the amounts you entered, and the worked-example panel re-derives the headline from your own numbers so nothing is taken on trust.
ROI versus CAGR: the role of time
The most important thing a raw ROI omits is how long the money was at work, and that omission is where the compound annual growth rate, or CAGR, comes in. CAGR is the steady yearly rate that would carry your starting amount to your ending amount over the holding period, assuming each year's growth compounds on the last. For a single sum left untouched, the CAGR and the annualized ROI this calculator reports are the very same number. The distinction people draw between them is mostly one of scope rather than mathematics: CAGR is traditionally quoted for one lump sum growing in isolation, whereas ROI is happy to fold in extra contributions, fees, income and tax before annualizing the result. Where the two genuinely diverge is when you compare investments held for different lengths of time. A 50% ROI sounds better than a 30% ROI until you learn the first took eight years and the second took two; annualized, the quick 30% is the far stronger result. This is the trap ROI sets when it is quoted without a time frame, and it is why any serious comparison should be made on an annualized footing. The calculator always shows both, so you can see the headline a salesperson would quote and the yearly rate that actually lets you line one opportunity up against another.
ROI versus IRR and XIRR
ROI treats an investment as a clean in-and-out: a lump of money goes in, a lump comes back, and the gap between them is the return. That model is perfect for a holding you bought once and sold once, but it breaks down the moment money moves in and out repeatedly at different times. If you drip-fed contributions into a fund every month for a decade, or a property generated rent throughout while you paid costs along the way, a single before-and-after snapshot cannot capture the timing, and timing changes the true return. The internal rate of return, IRR, and its dated cousin XIRR exist precisely for that case: they find the single annual rate that reconciles a whole schedule of cash flows, weighting each by how long it was actually invested. A pound that went in early and stayed in counts for more than one that arrived near the end. The practical rule is straightforward. Reach for ROI when you can sensibly describe the investment as one cost and one payoff, possibly with a little income on the side. Reach for IRR or XIRR when the cash flows are irregular enough that ignoring their timing would mislead you. The two views are complementary rather than rival, and the related calculators linked below let you switch between them as the shape of your investment demands.
Why annualizing changes the story
Annualizing is where most people's intuition about returns quietly goes wrong, so it is worth slowing down on. Suppose your investment earned 80% over five years. The tempting shortcut is to divide 80 by 5 and call it 16% a year, and the calculator shows that simple-average figure precisely so you can see why it is misleading. The honest annual rate is lower — about 12.47% — because returns compound. If you earned a true 16% every year, each year's gain would itself earn 16% the following year, and after five years you would be far past 80%; you would be up roughly 110%. To land on exactly 80%, the constant yearly rate has to be the smaller 12.47%, where the compounding does part of the lifting that the naive average wrongly credits to the headline rate. The gap between the simple average and the compound rate widens as returns grow and as the holding period lengthens, which is exactly when the error does the most damage. Whenever you see an investment's lifetime return advertised as though it were an annual one, mentally reach for the compound figure instead. The chart that pits the simple average against the compound rate makes the difference visible at a glance, and it is one of the quietest but most consequential lessons the calculator has to teach.
Real ROI: the quiet tax of inflation
A return is only as good as what it lets you buy, and inflation steadily erodes that. A nominal ROI counts the extra currency units you ended up with; a real ROI counts the extra purchasing power, which is what actually matters. The calculator converts one into the other using the relationship economists attribute to Irving Fisher: it takes one plus your total return, divides by one plus the cumulative inflation over the holding period, and subtracts one. The effect is larger than people expect. That 80% nominal return over five years, with inflation running at 3% a year, is worth only about 55.3% in real terms, because prices themselves rose roughly 16% over the same stretch and quietly clawed back part of your gain. On an annual basis the nominal 12.47% becomes a real rate near 9.2%. None of this means the investment was bad — a real return well above zero is a genuine increase in wealth — but it does mean the headline overstates how much better off you really are. The lesson sharpens over long horizons and in higher-inflation environments, where the gap between nominal and real can be the difference between feeling rich and standing still. Whenever you are comparing a return against a goal expressed in today's money, such as a retirement target or a house deposit, it is the real figure you should be holding it against.
Getting to a net return: fees, income and tax
Headline returns are usually quoted gross, and the distance between gross and net is where a great deal of real-world performance leaks away. This calculator lets you close that gap explicitly. Fees and commissions are folded into your cost basis, so the reported ROI is already net of them; alongside it the tool shows what the return would have been without those costs, which makes the drag from a high expense ratio or a chunky transaction fee impossible to ignore. Income works in the opposite direction: dividends, interest or rent received while you held the asset are added to your proceeds, lifting the return above what price appreciation alone would deliver. Tax is applied last and only to a positive profit, since a loss generally is not taxed; the result is a net ROI that reflects what you actually keep after fees and the taxman have both taken their share. The order matters and the calculator is careful about it, because applying tax to a pre-fee number or forgetting income entirely can swing the answer by several percentage points. The fees-and-taxes table lays the whole ladder out — from the gross return, down through the after-fee figure, to the final after-tax net — so you can see exactly where each slice of your return went and judge an investment on the money that ends up in your pocket rather than the flattering top-line number.
Break-even, return multiple and efficiency
Beyond the headline percentage, a handful of supporting measures help you read an investment at a glance. The break-even value is the price at which your return would be exactly zero — your cost basis, less any income you have already collected. Above it you are in profit; below it you are nursing a loss; and watching how far your final value sits from break-even is often more intuitive than the percentage itself, especially when you are deciding whether to hold on or cut a position. The return multiple expresses the same outcome as a factor rather than a percentage: a 1.8× multiple is the venture and property world's way of saying you got your money back plus eighty per cent. Profit per year divides the gain evenly across the holding period for a rough sense of pace, and a doubling time — derived from the annualized rate — tells you how long money would take to double if the same compound return continued. None of these is the whole picture on its own, but together they round out the headline into something you can actually reason about. A high ROI with a tiny multiple and a decade-long doubling time is a very different proposition from a modest ROI earned in a year, and the supporting metrics are what let you tell the two apart.
Working backwards: reverse calculations
Often the interesting question is not what return a set of numbers produces, but what one of those numbers would have to be to hit a target — and that is what the reverse modes are for. Rather than entering everything and reading the ROI, you fix the answer you want and let the calculator solve for the missing piece. You can ask what initial investment would be needed to earn a given ROI on a known exit value, or what final value a stake must reach to deliver the return you are aiming for. You can solve for the holding period that turns a known total return into a particular annual rate, useful when you have a yearly hurdle in mind and want to know how long the money must stay invested to clear it. You can work out the profit a target return implies, or the ROI and the annualized rate required to grow today's stake into a specific goal amount. Each of these is solved in closed form from the same underlying relationship, so the answers are exact rather than approximate, and the tool flags any target that simply cannot be reached — asking for a positive yearly return out of an investment that lost money, for instance, or a return that would require a negative initial outlay. Used this way the calculator becomes a planning instrument rather than just a scorekeeper, letting you reverse-engineer the inputs that would meet a goal before you commit a penny.
Common mistakes, and putting ROI to work
Because ROI is so simple to state, it is unusually easy to mislead yourself with it, and a few errors account for most of the trouble. The commonest is quoting a lifetime return as though it were annual — the 80%-over-five-years figure that is really 12.47% a year — which flatters slow investments and makes fair comparison impossible. A close second is leaving costs out of the basis: ignore the fees, commissions and taxes and your real return can be several points lower than the headline suggests. People also forget income, understating the return on dividend-paying or rent-generating assets, and they routinely compare a nominal return against a goal that is really expressed in today's money, quietly double-counting inflation in their favour. And ROI says nothing whatsoever about risk: a 30% return earned by taking wild chances is not obviously better than a 20% return earned safely, yet the percentage alone cannot tell them apart. The way to use the tool well is to do the opposite of each mistake. Always read the annualized figure when comparing across different time frames; include every cost and every scrap of income so the number is honest; check the real return against goals denominated in today's money; and treat the headline as the beginning of the analysis rather than the end of it. Used with that discipline, ROI stops being a marketing slogan and becomes what it should be — a clear, comparable, and honest measure of how hard your money actually worked.
Frequently asked questions
How is ROI calculated?
ROI is your net profit divided by your total cost basis, shown as a percentage: (net profit ÷ cost basis) × 100. Cost basis is the amount you invested plus any additional contributions, fees and commissions. In the default example, a 10,000 cost basis that returns 18,000 is an 8,000 profit — an 80% ROI.
What is annualized ROI, and why is it lower than my total ROI?
Annualized ROI restates the total return as an equivalent compound yearly rate: (1 + ROI)^(1 ÷ years) − 1. An 80% total return earned over five years annualizes to about 12.47% a year — lower than the 16% you get by simply dividing 80% by five, because compounding earns growth on growth, so a smaller steady rate reaches the same finish.
How is ROI different from CAGR?
CAGR is essentially the annualized ROI of a single lump sum left untouched — it has no concept of added contributions, fees, income or tax. ROI is broader: it nets all of those into the return and reports both the total and the annualized figure. When there is one amount in and one amount out, the annualized ROI and CAGR are the same number.
How is ROI different from IRR or XIRR?
ROI measures a single investment as one amount in and one amount out, so it is blind to when money moved in between. IRR and XIRR are built for a stream of cash flows at different times and weight each by how long it was invested. Use ROI for a clean in-and-out holding; reach for IRR or XIRR when you made staggered contributions or withdrawals.
What is real (inflation-adjusted) ROI?
Real ROI strips out inflation so the return is measured in today's purchasing power, using the Fisher relation: (1 + ROI) ÷ (1 + inflation)^years − 1. An 80% nominal return over five years with 3% annual inflation is worth about 55.3% in real terms — the gap is the spending power inflation quietly removes.
How does the calculator handle fees and taxes?
Fees and commissions are added to your cost basis, so the headline ROI is already net of them; a before-fees ROI is shown alongside for reference. A tax rate is applied to a positive profit only, producing a net ROI after both fees and taxes. A loss is never taxed.
What do the reverse calculation modes do?
Instead of computing ROI from your inputs, the reverse modes solve for one missing input given a target: the initial investment or final value for a target ROI, the holding period for a target annualized return, the profit a target return implies, or the ROI and annualized return required to reach a goal final value. The calculator flags any target that no realistic value can reach.