ROI Calculator
Calculate return on investment, annualized ROI (CAGR), and break-even period for any investment — stocks, real estate, or business.
Calculating...
Enter your initial investment and return value, then click Calculate ROI.
What Is ROI?
Return on Investment — ROI — is the most widely used performance metric in finance. It answers a simple question: for every dollar you put in, how many dollars did you get back? Expressed as a percentage, ROI lets you compare very different investments on a level playing field: a $500 stock trade and a $500,000 property acquisition can both produce a "35% ROI", making the figure meaningful across all scales.
Investors, business owners, and analysts use the return on investment calculator to evaluate marketing campaigns, equipment purchases, real estate deals, stock portfolios, and startup ventures. The formula is the same in every case: divide net profit by the original cost and multiply by 100.
A positive ROI means the investment made money. A negative ROI means it lost money. A result of exactly zero means you recovered your cost and nothing more. Context matters too — a 10% ROI on a savings account over one year is excellent, while 10% on a startup investment over ten years is poor. That is why this calculator also computes annualized ROI, so you can judge performance by time as well as magnitude.
How to Calculate Return on Investment
There are two equivalent ways to calculate ROI, depending on what information you have. Both produce the same result.
Method 1 — By Final Value
Use this when you know what the investment is worth now. Subtract the initial cost from the current value to find net profit, then divide by the initial cost:
Net Profit = Final Value − Initial Investment
ROI% = (Net Profit ÷ Initial Investment) × 100
Example — Stock portfolio: You invested $1,000 and the portfolio is now worth $1,350. Net profit = $350. ROI = (350 ÷ 1,000) × 100 = 35%. Your return multiple is 1.35×, meaning every dollar became $1.35.
Method 2 — By Net Profit
Use this in business contexts where you know total revenue and total costs, and have already calculated the profit figure. Divide net profit directly by the investment cost:
ROI% = (Net Profit ÷ Initial Investment) × 100
Example — Business venture: You spent $50,000 to launch a product and generated $15,000 in profit over three years. ROI = (15,000 ÷ 50,000) × 100 = 30%. Over three years that works out to $5,000 profit per year and a break-even point of 10 years.
ROI Formulas at a Glance
ROI Percentage
ROI% = (Net Profit ÷ Initial Investment) × 100
The core formula — works for any investment type
Annualized ROI (CAGR)
CAGR = (Final Value ÷ Initial Investment)^(1 ÷ Years) − 1
Converts a multi-year return to an equivalent yearly rate
Break-Even Period
Break-even = Initial Investment ÷ Annual Profit
How many years until the investment pays for itself
Rule of 72 (Doubling Time)
Doubling Years ≈ 72 ÷ Annual ROI%
Quick estimate of how long to double your money at a given annual rate
Annualized ROI and CAGR Explained
Simple ROI ignores time. A 35% return sounds identical whether it happened in six months or ten years — but those two scenarios are radically different investments. Annualized ROI, also called Compound Annual Growth Rate (CAGR), translates your total return into an equivalent yearly percentage so you can compare investments held for different durations.
Example: Your $1,000 portfolio grew to $1,350 over three years. Simple ROI is 35%. Annualized ROI is (1.35)^(1/3) − 1 = 10.52% per year. Compare that to a savings account at 4.5% APY — the portfolio outperformed by roughly 6 percentage points per year on an annualized basis.
The Rule of 72 gives a quick mental estimate of how long it takes to double your money. Divide 72 by the annual ROI percentage. At 10.52% per year, your money doubles in roughly 72 ÷ 10.52 ≈ 6.8 years. This is an approximation — the calculator shows the precise figure — but it is a useful benchmark for evaluating long-term investments at a glance.
Note that CAGR assumes continuous compounding over the hold period. It does not account for dividends, rental income, or periodic contributions unless you include those in your final value figure. For a more detailed picture of compounding with regular additions, use the Compound Interest Calculator.
How to Find the Break-Even Period
The break-even period answers: "How long until I recover my original investment?" It is most useful in business scenarios where you have a recurring annual profit, such as a rental property, a franchise, or a product launch.
Divide the initial investment by the annual profit earned each year. If you spent $50,000 launching a product and you earn $5,000 net profit per year, the break-even point is $50,000 ÷ $5,000 = 10 years. Any profit after year 10 is pure gain.
This calculator derives annual profit by spreading your total profit evenly across the hold period you enter. If your profit is uneven year-to-year, use the by-net-profit mode and enter the total profit over the period you actually held the investment — the result will still give you the effective break-even assuming a smoothed annual rate.
ROI Benchmarks by Investment Type
These are historical or typical ranges. Actual returns vary by market conditions, timing, location, and execution. Use these as a starting point, not a guarantee.
| Asset Class | Typical Annual ROI | Notes |
|---|---|---|
| S&P 500 (US Stocks) | ~10% | Historical average since 1957; ~7% inflation-adjusted |
| Residential Real Estate | 8–12% | Combines appreciation and rental yield; varies heavily by location |
| Small Business (SME) | 15–30% | Higher potential but requires active management and carries more risk |
| Government Bonds | 3–5% | Low risk; yields depend on central bank rates |
| High-yield Savings | 4–5% | As of 2024–2025; rate follows central bank policy |
| Early-stage Startups | 20–30%+ (target) | Very high risk; most fail — VC funds expect outsized wins to offset losses |
ROI Calculator FAQ
What is a good ROI percentage?
It depends entirely on the asset class and your time horizon. For a low-risk investment like government bonds, 4–5% annually is considered good. For the stock market, beating the S&P 500's historical ~10% average is a common benchmark. For a small business, investors typically expect at least 15–20% annually to justify the additional risk over passive investing. There is no universal "good" ROI — always compare against the relevant benchmark for that type of investment.
How is ROI different from CAGR?
Simple ROI measures total return over the entire investment period with no regard for how long it took. CAGR (Compound Annual Growth Rate) is the annualized equivalent — it tells you what constant yearly return would produce the same total result. For investments held longer than one year, CAGR is more useful for making comparisons. Two investments with identical ROI but different durations have very different CAGRs.
Can ROI be negative?
Yes. A negative ROI means the investment lost money — the final value is less than the original cost. For example, if you invest $10,000 and it falls to $7,500, your ROI is −25%. Negative ROI is common in short-term stock trades, failed business ventures, and depreciating assets. The calculator flags negative ROI with an "At a Loss" badge and colours the result red so it is immediately clear.
How do I calculate annualized ROI?
Enter your initial investment, final value, and the number of years held. The calculator uses the CAGR formula: (Final Value ÷ Initial Investment)^(1 ÷ Years) − 1. This uses compound interest logic — it finds the single annual growth rate that, compounded over the hold period, exactly produces the observed total return. If you have a simple total ROI percentage and want to annualize it without a calculator, use: Annualized ROI = (1 + ROI/100)^(1/Years) − 1.
What does a 2× return multiple mean?
A 2× return multiple (sometimes written "2x") means your investment doubled — for every $1 you put in, you now have $2. A 1× multiple means you broke even (got your money back with no gain). A return multiple below 1× means a loss. In venture capital, fund managers often target a 3× portfolio multiple over a 10-year fund life, which corresponds to roughly 11.6% annualized ROI.
Why does break-even depend on annual profit, not total profit?
Break-even measures how quickly you recover your initial outlay. If you invest $50,000 and earn $15,000 total over three years, you earn $5,000 per year on average. At that rate it takes $50,000 ÷ $5,000 = 10 years to fully recover the original investment — even though you already have $15,000 in total profit. Total profit alone does not tell you the recovery rate; you need the annual profit figure to know when the initial cost has been paid back.
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