ROI calculator (return on investment)

Calculate the return on investment (ROI) and profit from the amount invested and the amount returned.

ROI

50%

Profit (or loss)$500.00

Multiple1.5×

ROI measures the percentage gain over what was invested. A negative ROI means a loss.

How the calculation works

ROI = (amount returned − amount invested) ÷ amount invested × 100. It is the simplest way to compare the efficiency of different investments.

Does ROI account for time?

No. To compare different periods, use CAGR (annualized return).

Calculate the compound annual growth rate (CAGR) of an investment between two values.

Calculate profit, profit margin and markup from cost and selling price.

Updated on June 18, 2026 · by Rafael Rossi · Methodology & sources