What is the difference between ROI and CAGR?

ROI is total percentage return. CAGR is the annualized rate. $10,000 growing to $18,000 in 5 years = 80% ROI but 12.5% CAGR. Use CAGR to compare investments held different lengths of time.

What is a good ROI percentage?

S&P 500 averages ~10% annually. Real estate 8-12%. Business investments ideally 20%+. Marketing ROI above 500% (5:1) is generally strong. Always compare against your cost of capital.

ROI Calculator – Return on Investment Calculator Free 2025

Initial Investment ($)

Final Value ($)

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Initial Investment ($)

Final Value ($)

Time Period (years)

Enter required values to see results

AI InsightsSmart

Enter values to see insights.

Initial Investment ($)

Final Value ($)

Time Period (years)

Enter required values to see results

AI InsightsSmart

Enter values to see insights.

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ROI: The Universal Investment Metric — And Its Key Limitation

ROI (Return on Investment) measures profit as a percentage of cost — the most universally used metric for comparing investments. A 40% ROI sounds impressive, but context matters: 40% over 10 years is roughly 3.4% annually (worse than inflation), while 40% in one year is exceptional. This is why annualized ROI (CAGR — Compound Annual Growth Rate) is the more meaningful number for multi-year comparisons. This calculator provides both total ROI and annualized ROI so you can evaluate investments fairly across different time horizons.

ROI Formula and How to Use the Calculator

ROI = ((Final Value − Initial Investment) / Initial Investment) × 100. Enter your initial investment cost and the final value received (or current value). Optionally add the number of years held to calculate annualized ROI (CAGR). Example: Invest $10,000, grow to $15,000 in 3 years = ROI of 50%, annualized ROI of 14.5%. The calculator also shows the total profit in dollars alongside the percentage.

Frequently Asked Questions

ROI = ((Final Value − Initial Cost) / Initial Cost) × 100. Example: Buy stock for $8,000, sell for $11,000 = ($11,000 − $8,000) / $8,000 × 100 = 37.5% ROI. For negative returns: buy for $8,000, sell for $6,000 = −25% ROI.

ROI measures total percentage return regardless of time. CAGR (Compound Annual Growth Rate) is the annualized rate that would produce the same final value. A $10,000 investment that grew to $18,000 over 5 years has an ROI of 80% but a CAGR of 12.5%. CAGR is the better number for comparing investments held over different durations.

Context matters: S&P 500 historical average is ~10% annually. Real estate typically 8–12%. A savings account in 2026 earns 4–5%. For a business investment, 20%+ annualized is strong. For marketing spend, any ROI above 5:1 (500%) is generally considered good. Always compare against your cost of capital and alternative investments.

Yes. ROI ignores time, risk, and opportunity cost. A 50% ROI over 20 years is mediocre. A 50% ROI in 6 months is exceptional. It also does not account for taxes on gains or inflation. For a complete picture, use ROI alongside CAGR, net present value (NPV), and risk-adjusted return metrics.

Marketing ROI = (Revenue Generated − Marketing Cost) / Marketing Cost × 100. A campaign costing $5,000 that generates $25,000 in traceable revenue has a 400% ROI. Businesses set minimum ROI thresholds (hurdle rates) for approving capital expenditures — typically 15–25% for most companies.