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ROI Calculator

FinanceOffline-ready

ROI Calculator computes the return on investment as a percentage using ROI = (Gain - Cost) / Cost × 100. Enter the initial cost and total gain to see the ROI percentage, net profit, and optionally the annualised return if you provide the investment period. Useful for comparing investments, marketing campaigns, and project valuations. Runs in your browser.

Related: Profit & LossCompoundPercentage Calculator

Your files and inputs stay in your browser — nothing is uploaded or stored.

Amount you put in

What the second value represents

Total returned

Net Profit

25,000.00

ROI

50.00%

Final Value

75,000.00

Return on Investment (ROI) calculator

ROI = (Net Profit / Cost of Investment) × 100. Enter your initial investment cost and final value (or net gain) to calculate the ROI percentage and annualised return. Useful for comparing investment options, marketing campaign performance, and business project viability.