ROI Calculator

Return on a gain versus cost.

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Enter what you spent and what you got back, plus how long you held it. Percentages are estimates, not a performance report.

How to use this tool

  1. Enter the amounts. Fill in principal, rate, term, or prices. Use the same currency throughout.
  2. Read the estimate. The figures are a simplified model, not a lender or tax quote.
  3. Compare a related tool. Open amortization, compound interest, or paycheck if you need another view.

Annualized figure

CAGR-style annualization assumes a smooth path. Real investments jump around. Taxes and fees are omitted unless you net them in the inputs.

Frequently asked

Should I include dividends?

Add them to proceeds if you want a total-return estimate.

Can I compare two projects?

Run each separately. This page does not rank a portfolio.

Is a high ROI always better?

Risk, time, and cash timing matter. This tool does not judge that.

Should I buy or sell based on this ROI?

No. The percent is an estimate from two cash figures, not a recommendation.

Does it use XIRR?

No. Cash flows are a single in and a single out.