ROI Calculator
Return on Investment ยท Total ROI ยท Annualized ROI ยท Net ROI after tax and inflation
๐ Enter your investment amount, return, and holding period to see ROI, annualized return, and comparison.
What Is ROI?
Return on Investment measures the profit earned on an investment relative to its cost. It is expressed as a percentage and applies to any asset: stocks, real estate, a business, a piece of equipment, or even a marketing campaign.
The "Amount Returned" should include everything you received from the investment: sale proceeds, dividends, rental income, and any other distributions. The "Amount Invested" should include the full cost: purchase price, transaction fees, commissions, and any improvement costs.
ROI does not incorporate time. A 50% ROI over 3 years and a 50% ROI over 30 years are both reported as "50%," even though the first is dramatically more valuable. This is ROI's main weakness. Annualized ROI (CAGR) solves it.
Annualized ROI and CAGR
Annualized ROI converts a total return into an equivalent annual compound growth rate, letting you compare investments held for different lengths of time.
With annualized ROI you can now answer the question that simple ROI cannot: which is better, a 200% return over 20 years (annualized: 5.65%) or a 30% return over 2 years (annualized: 14.02%)? The 30% return in 2 years clearly wins on an annual basis, even though its total ROI looks smaller.
Annualized ROI by Total ROI and Holding Period
| Total ROI | 2 years | 5 years | 10 years | 20 years |
|---|---|---|---|---|
| 25% | 11.80% | 4.56% | 2.26% | 1.12% |
| 50% | 22.47% | 8.45% | 4.14% | 2.05% |
| 100% | 41.42% | 14.87% | 7.18% | 3.53% |
| 200% | 73.21% | 24.57% | 11.61% | 5.65% |
| 500% | 145.00% | 43.10% | 19.62% | 9.33% |
Net ROI After Tax and Inflation
Nominal ROI overstates what you actually keep. Two adjustments bring the number closer to reality: taxes on the gain, and the erosion of purchasing power from inflation.
After-Tax ROI
Investment gains are taxed as either short-term capital gains (ordinary income rates, up to 37% federally in the US) or long-term capital gains (0%, 15%, or 20%, depending on income) for assets held over one year. The tax applies to the gain, not the total returned amount.
Real ROI After Inflation
Inflation reduces purchasing power. A $15,000 return received in 3 years is worth less in real terms than $15,000 today. The real ROI removes the inflation distortion:
ROI Across Different Asset Classes
ROI benchmarks vary widely by asset class. Comparing investments requires using the same time horizon and the same definition of "costs" and "returns."
Equities (Stocks)
The S&P 500 has returned roughly 10% annually (nominal) over the past century, or about 7% in real (inflation-adjusted) terms. Individual stocks vary enormously. Calculating stock ROI must include dividends reinvested, not just price appreciation, to be accurate.
Real Estate
Residential real estate appreciation averages 3 to 4% annually in the US, roughly in line with inflation. Total return including rental income typically runs 8 to 12% annualized for income-producing properties, though leverage (mortgage) amplifies both gains and losses. The ROI calculation for rental property must account for: purchase price, closing costs, renovation, ongoing maintenance, property management, property taxes, insurance, and rental income collected.
Small Business
Business ROI calculations are the most complex because "investment" and "return" are defined differently by every owner. A narrow calculation uses initial capital invested versus profit distributions. A broader one includes the owner's time as an implicit cost. Studies suggest median small business returns range from 10 to 20% annually for profitable businesses, but with dramatically higher failure rates than passive investments.
Fixed Income (Bonds and CDs)
US Treasury bonds and investment-grade corporate bonds return 4 to 6% annually in the current environment. CDs currently offer 4.4 to 5.2%. These are lower than equities but with minimal volatility and no risk of principal loss for Treasuries and FDIC-insured CDs. ROI calculations for bonds should use YTM rather than simple coupon rate when the bond was purchased at a premium or discount.
| Asset Class | Typical Annual ROI | Risk Level |
|---|---|---|
| US Stocks (S&P 500) | ~10% nominal | Moderate to High |
| International Stocks | 7 to 9% | High |
| Residential Real Estate | 8 to 12% (incl. rent) | Moderate |
| Corporate Bonds (IG) | 4 to 6% | Low to Moderate |
| US Treasury Bonds | 4 to 5% | Very Low |
| CDs (best rates 2026) | 4.4 to 5.2% | Virtually None |
| High-Yield Savings | 4.5 to 5.0% | None |
ROI vs Other Return Metrics
ROI is one of several ways to measure investment performance. Each metric captures something the others miss.
ROI vs CAGR
These two terms are often used interchangeably but are technically different. ROI is the total percentage return over the full holding period. CAGR (Compound Annual Growth Rate) is the annualized version - mathematically identical to annualized ROI. When someone says "CAGR of 10%," they mean the investment grew at 10% per year compounded. When someone says "ROI of 150%," they mean total growth, without specifying time.
ROI vs IRR
IRR (Internal Rate of Return) handles investments with multiple cash flows at different times: an investment with ongoing contributions, dividends reinvested at different points, or partial withdrawals. For a single lump-sum investment with one exit, annualized ROI and IRR produce the same result. For anything more complex, IRR is the correct tool. Our IRR Calculator handles multi-cash-flow investments.
ROI vs NPV
Net Present Value discounts all future cash flows back to today's dollars at your required rate of return, then subtracts the initial cost. NPV answers "how much value does this investment create above my minimum required return?" A positive NPV means the investment exceeds your hurdle rate; a negative NPV means it doesn't. NPV is superior to ROI for comparing projects of different sizes and for capital budgeting decisions.
ROI vs ROR
Rate of Return (ROR) often refers to a single-period return (the return in a specific year or quarter), while ROI typically refers to the cumulative return over the entire investment period. In casual use the terms are interchangeable, but in formal analysis ROR usually implies a specific period, while ROI implies the full holding period.
ROI Measurement Challenges
ROI is simple to state and hard to apply correctly. The formula itself has two inputs - gain and cost - but both require careful definition to produce a meaningful number.
What Counts as a Cost?
For a stock purchase: the purchase price obviously, but also the brokerage commission, bid-ask spread, and any margin interest if the investment was leveraged. For a rental property: purchase price, closing costs (typically 2 to 4% of price), renovation costs, carrying costs during vacancy, annual maintenance, property tax, insurance, and property management fees. Leaving out any of these understates the cost and inflates the ROI.
What Counts as a Return?
For a stock: sale price plus any dividends received. If dividends were reinvested rather than taken as cash, the number of shares owned at exit reflects those reinvestments, and the ROI calculation should account for this. For real estate: sale price minus selling costs (typically 6 to 8% in agent commissions and closing costs) plus net rental income (rent collected minus all operating expenses paid).
The Leverage Problem
When an investment is financed with borrowed money, ROI calculations can mislead. A property bought for $200,000 with $40,000 down that appreciates to $240,000 shows a 100% ROI on the equity invested ($40,000 invested, $40,000 gain). But this ignores mortgage interest paid over the holding period, which can easily consume $20,000 to $30,000 of that gain. The leveraged ROI net of financing costs might be 25 to 50%, not 100%. Always include financing costs in a levered investment's cost basis.
Opportunity Cost
ROI on its own says nothing about whether an investment was the best use of capital. A 20% ROI sounds good, but if the same dollars could have earned 30% elsewhere at similar risk, the investment was suboptimal. The benchmark comparison field in this calculator lets you measure your investment against any annual return rate to see whether it outperformed the alternative.