ROI Calculator

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

Formula

ROI = (Amount returned − Amount invested) ÷ Amount invested × 100. Annualised ROI = (Returned ÷ Invested)^(1 ÷ years) − 1.

About this calculator

ROI measures the total gain relative to cost. Annualised ROI converts it into a yearly rate so that investments held for different lengths of time can be compared fairly.

Amounts are shown without a currency symbol, so the calculator works for any currency: enter all values in the same one.

Frequently asked questions

What is the difference between ROI and annualised ROI?

ROI ignores time: 30% in one year and 30% in ten years look the same. Annualised ROI shows the equivalent yearly growth rate.

What should "amount returned" include?

Everything you got back: the sale value plus any income such as dividends, interest or rent, minus selling costs.

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