Calculate your return on investment (ROI) instantly. Enter initial investment and final value to see ROI percentage, total gain or loss, and annualized return. Pure client-side, zero latency.
ROI (Return on Investment) is a performance measure used to evaluate the efficiency of an investment. It compares the gain or loss from an investment relative to its cost. This calculator computes ROI percentage, absolute gain/loss, and annualized ROI when you provide the investment period. All calculations happen instantly in your browser — no data sent anywhere.
ROI (Return on Investment) is a ratio that measures the gain or loss generated on an investment relative to the amount of money invested. It is expressed as a percentage.
Regular ROI shows total return over the entire period. Annualized ROI normalizes this to a per-year rate, making it easier to compare investments with different time horizons.
Yes, just enter the numeric values. The calculator works with any currency since it only performs percentage calculations.
Absolutely. All calculations happen inside your browser. Nothing leaves your device.