ROI Calculator - ROI, CAGR & MOIC in One

Every investment decision comes down to a single question: what return am I getting for the money and time I put in? This ROI calculator answers that question with precision.

Reviewed by: CalcMojo Editorial Team

Enter the amount you invested, the amount you received back (or the current value), and the time period, and the tool calculates your total return on investment, annualized return, and compound annual growth rate (CAGR) so you can evaluate performance on an apples-to-apples basis.

ROI is the most widely used metric in finance for evaluating the profitability of an investment relative to its cost. Whether you are comparing stocks, real estate, a business venture, or even a college degree, ROI gives you a standardized way to measure what you got back for what you put in. But raw ROI alone can be misleading without context, which is why this calculator also provides annualized returns and CAGR to account for the time dimension.

Use this tool to evaluate past investments, compare potential opportunities side by side, or project future returns based on historical performance. Clear numbers lead to better decisions.

How ROI Is Calculated

Return on investment is one of the simplest and most intuitive financial metrics. The basic ROI formula is:

ROI = (Net Profit / Cost of Investment) x 100

Where Net Profit equals the final value minus the initial investment. If you invested $10,000 and your investment is now worth $14,000, your net profit is $4,000 and your ROI is 40%.

This basic formula is useful for quick comparisons, but it has a significant limitation: it ignores time. A 40% return over 2 years is far more impressive than a 40% return over 10 years. To account for time, financial professionals use annualized ROI and CAGR.

Annualized ROI converts a total return into a yearly equivalent:

Annualized ROI = ((1 + ROI)^(1/n) – 1) x 100

Where n is the number of years. That 40% return over 10 years annualizes to approximately 3.4% per year, while the same return over 2 years annualizes to approximately 18.3% per year. Now you can compare them directly against each other and against benchmarks like the S&P 500 average.

CAGR vs Simple ROI: Why It Matters

The compound annual growth rate (CAGR) is the annualized rate of return that an investment would need to grow from its beginning value to its ending value, assuming profits are reinvested at the end of each year. The formula is:

CAGR = (Ending Value / Beginning Value)^(1/n) – 1

CAGR differs from average annual return in an important way. Average annual return is the arithmetic mean of yearly returns, which can be misleading when returns vary. Consider an investment that gains 50% in year one and loses 33% in year two. The average annual return is (50% + -33%) / 2 = 8.5%. But your actual balance went from $10,000 to $15,000 and back to $10,050, a total gain of just 0.5% over two years, or a CAGR of approximately 0.25% per year.

This discrepancy occurs because of the mathematical asymmetry of gains and losses: a 50% loss requires a 100% gain to recover. CAGR captures the actual compounded growth, while average return can paint an overly optimistic picture when returns are volatile. This is why CAGR is the preferred metric for evaluating investment performance over multiple years.

Use the CAGR Calculator for a dedicated tool focused on compound annual growth rate calculations.

What Counts as a Good ROI?

The definition of a "good" ROI depends entirely on the context: the asset class, the risk level, the time period, and the available alternatives.

Stock market benchmarks. The S&P 500 has delivered an average annual return of approximately 10% before inflation over the past century, or roughly 7% after inflation. Any investment that consistently beats this benchmark over a multi-year period is performing well relative to the broad market.

Real estate. Residential real estate in the United States has appreciated at approximately 3% to 5% annually over long periods, but total ROI including rental income, tax benefits, and leverage can be significantly higher. A rental property generating 8% to 12% cash-on-cash return annually is generally considered strong.

Bonds and fixed income. Government bonds have historically returned 2% to 5% annually, with corporate bonds slightly higher. These lower returns come with lower risk, which may be appropriate depending on your goals and timeline.

Business investments. Venture capital and private equity target returns of 20% to 30% or higher to compensate for the significantly higher risk and illiquidity. Small business investments vary wildly and should be evaluated against the total capital at risk.

Education. The ROI of a college degree varies by institution, field of study, and individual career trajectory. Studies consistently show that bachelor’s degree holders earn significantly more over a lifetime than high school graduates, but the specific ROI depends on tuition costs, opportunity costs (foregone earnings), and post-graduation salary.

The key principle is that higher expected returns should correspond to higher risk. A guaranteed 5% return from a treasury bond is not directly comparable to a volatile stock portfolio averaging 10%, because the stock portfolio could lose 30% in any given year.

How to Compare Investments Using ROI

Raw ROI numbers are only useful for comparison when you normalize for time and risk. Here is a framework for making fair comparisons:

Step 1: Annualize all returns. Convert every investment’s ROI to an annualized or CAGR figure. A real estate investment that returned 80% over 8 years (CAGR of 7.6%) may look less impressive than its headline number suggests when compared to an index fund that returned 60% over 5 years (CAGR of 9.9%).

Step 2: Account for all costs. True ROI must include every cost associated with the investment. For stocks, include transaction fees, management fees, and taxes on gains. For real estate, include maintenance, property taxes, insurance, vacancy costs, and transaction costs (typically 6% to 10% for buying and selling). For business investments, include opportunity cost of your time.

Step 3: Adjust for risk. The Sharpe ratio is the standard metric for risk-adjusted return, defined as (Return – Risk-Free Rate) / Standard Deviation of Return. While this calculator does not compute the Sharpe ratio directly, you should mentally discount high-volatility returns compared to stable ones.

Step 4: Consider liquidity. Money locked in real estate or a private business is not available for other opportunities. Liquid investments in publicly traded stocks can be sold at any time. Illiquidity deserves a premium in your expected return requirements.

Step 5: Factor in taxes. Different investments receive different tax treatment. Long-term capital gains are taxed at lower rates than short-term gains. Real estate offers depreciation deductions. Retirement accounts offer tax-deferred or tax-free growth. After-tax ROI is what actually hits your bank account. Use the Compound Interest Calculator to model after-tax growth scenarios.

Common ROI Mistakes to Avoid

Ignoring the time dimension. A 100% total return sounds impressive until you learn it took 15 years (CAGR of 4.7%). Always annualize returns before comparing investments or making decisions.

Forgetting about inflation. A 6% nominal return in an environment with 3% inflation delivers only 3% real purchasing power growth. For long-term planning, use inflation-adjusted (real) returns. The Inflation Calculator can help you understand purchasing power erosion.

Cherry-picking time periods. The ROI of any volatile investment depends heavily on your start and end dates. The S&P 500 returned over 30% in 2013 but lost 37% in 2008. Always evaluate performance over multiple time periods and full market cycles.

Conflating paper gains with realized returns. An unrealized gain is not ROI until you sell. Market conditions can change, and paper gains can evaporate. Consider your actual exit strategy and timeline when calculating expected ROI.

Overlooking opportunity cost. Money invested in one opportunity cannot be invested in another. The true cost of an investment includes not just the capital but the returns you could have earned elsewhere. If your real estate investment returns 6% annually but you could have earned 10% in the stock market, the opportunity cost is 4% per year.

Ignoring fees and transaction costs. Mutual fund expense ratios, advisor fees, real estate closing costs, and trading commissions all reduce your actual return. A fund returning 9% with a 1.5% expense ratio delivers 7.5% to you. Over 30 years of compounding, that 1.5% fee can reduce your ending balance by 30% or more.

ROI in Real Estate vs Stocks

This is one of the most debated comparisons in personal finance, and the answer is nuanced.

Stocks offer liquidity, diversification, low transaction costs, and passive management through index funds. The historical average return of approximately 10% per year requires no active management if you invest in a total market index fund.

Real estate offers leverage (a 20% down payment controls 100% of the asset), rental income, tax advantages (depreciation, 1031 exchanges), and a tangible asset. A $50,000 down payment on a $250,000 rental property that appreciates 4% per year generates a 20% return on your cash investment through leverage alone, before rental income.

The leverage advantage is real estate’s superpower for ROI calculation. If the property appreciates $10,000 in a year (4% of $250,000), your ROI on the $50,000 down payment is 20%, not 4%. Add rental income and tax benefits, and the total ROI can be compelling. But leverage also amplifies losses, and real estate carries concentration risk, illiquidity, and management responsibilities that stocks do not.

Neither asset class is inherently superior. Most financial advisors recommend holding both as part of a diversified portfolio. Use this calculator to compare your specific scenarios and make decisions grounded in actual numbers rather than generalizations.

This calculator provides estimates for informational purposes only. It is not financial advice. Results may not reflect your actual loan terms, tax situation, or investment returns. Consult a licensed financial advisor, CPA, or investment professional before making financial decisions.

Frequently Asked Questions

What is a good ROI percentage?

It depends on the investment type and risk level. The S&P 500 averages approximately 10% annually before inflation. Real estate with leverage may target 8% to 15%. Savings accounts offer 4% to 5% with minimal risk. Higher expected returns generally come with higher risk. Compare any investment’s ROI to its relevant benchmark rather than using a universal standard.

What is the difference between ROI and CAGR?

ROI measures total return as a percentage of the initial investment without accounting for time. CAGR annualizes the return, showing the equivalent yearly growth rate needed to achieve that total return. CAGR is more useful for comparing investments held over different time periods. A 50% ROI over 3 years equals a CAGR of approximately 14.5%.

How do I calculate ROI on rental property?

For rental property, calculate ROI as (Annual Rental Income – Annual Expenses + Annual Appreciation) / Total Cash Invested x 100. Total cash invested includes down payment, closing costs, and any renovation costs. Annual expenses include mortgage payments, taxes, insurance, maintenance, and vacancy costs. This gives you the cash-on-cash return.

Should I use nominal or real ROI?

For comparing investments over similar time periods, nominal ROI is fine. For long-term planning and understanding actual purchasing power growth, use real (inflation-adjusted) ROI. Subtract the inflation rate from your nominal return for an approximate real return. A 9% nominal return with 3% inflation delivers approximately 6% real return.

What is annualized return?

Annualized return converts a total return over any time period into an equivalent yearly rate. It allows you to compare investments held for different durations. A 25% total return over 3 years annualizes to approximately 7.7% per year. The formula is ((1 + Total ROI)^(1/years) – 1) x 100.

How do fees affect my ROI?

Fees reduce your effective return and compound over time. A 1% annual management fee on a $100,000 portfolio earning 8% gross return costs approximately $1,000 in year one, but the cumulative impact over 30 years exceeds $200,000 due to lost compounding on those fees. Always factor fees into ROI calculations.

Can ROI be negative?

Yes. If your investment loses value, the ROI is negative. A $10,000 investment that declines to $7,000 has an ROI of -30%. Negative ROI is common in volatile markets during short time periods. The key is evaluating ROI over appropriate time horizons that match your investment strategy.

How do taxes affect investment ROI?

Taxes can significantly reduce your actual return. Short-term capital gains (assets held less than one year) are taxed at your ordinary income rate, which could be 22% to 37%. Long-term gains are taxed at 0%, 15%, or 20% depending on income. Tax-advantaged accounts like 401(k)s and Roth IRAs can eliminate or defer this drag on returns.

Sources & Methodology

ROI calculated using the standard formula: (Net Profit / Cost of Investment) x 100, as universally defined in corporate finance and investment analysis.
CAGR formula: (Ending Value / Beginning Value)^(1/n) – 1, the standard measure of annualized growth used by financial analysts and fund managers.
S&P 500 historical return data sourced from NYU Stern School of Business Damodaran Online dataset.
Real estate appreciation data based on Case-Shiller U.S. National Home Price Index and Federal Housing Finance Agency (FHFA) data.
Tax rate information based on current IRS tax brackets and capital gains tax rates for the 2025-2026 tax year.
Sharpe ratio definition from William F. Sharpe’s original 1966 paper and subsequent industry standardization.

Default rates shown are illustrative. Always verify current rates with your lender/provider. Data accurate as of: March 2026