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ROI Calculator

Find total and annualized return on any investment.

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How the roi calculator works

ROI is the gain divided by the cost: (amount returned - amount invested) / amount invested. Doubling your money is a 100% ROI no matter how long it took.

To compare investments of different lengths, use the annualized ROI: (returned / invested)^(1 / years) - 1. A 100% gain over 2 years is about 41% a year; over 10 years it is only about 7% a year.

Using and checking your result

Published by JustYourCalculator. Check the units and assumptions above, and compare a known example before relying on the output. Calculations use browser arithmetic and may round displayed values.

This is an educational estimate, not a lender quote, tax filing calculation or investment recommendation. Actual costs depend on current rules, fees and your circumstances. Verify important decisions with official sources and a qualified adviser.

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Frequently asked questions