Return on Investment (ROI) Calculator

Calculate your profit percentage and annualised return on any investment

Amount Invested

Amount Returned

Investment Period (years)

For annualised return

Profit / Loss

ROI

Annualised ROI

Return Multiple

// ROI Formula

ROI = (Return - Investment) / Investment × 100. A 44% ROI means you earned 44 cents for every dollar invested. Simple, powerful, universal.

// Annualised Return

Annualised ROI accounts for time. 44% over 3 years is ~12.9% per year. This lets you compare investments with different time horizons fairly.

// Benchmarks

S&P 500 historical average: ~10%/year. SA JSE All Share: ~11%/year. SA property: ~7-9%. If your investment beats these, you're outperforming the market.

// After Inflation

Always consider real returns (after inflation). A 10% return with 6% inflation gives a real return of only ~3.8%. SA inflation averages 5-6%.