ROI calculator.

Calculate return on investment, annualised ROI, and investment multiples. Compare opportunities on a level field, regardless of how long they take to play out.

What ROI tells you.

Return on Investment measures profit relative to cost: (Final value − Initial) ÷ Initial × 100. Positive = profit, negative = loss. Higher = better — but only when you also account for time.

  1. 01
    Calculate ROI percentage and net gain or loss in one place.
  2. 02
    Measure annualized ROI to compare investments across different time periods.
  3. 03
    Calculate investment multiples (2×, 5×, 10× returns).
  4. 04
    Compare to industry benchmarks to know whether you’re winning or just busy.

Calculate your ROI.

What you put in.

What it’s worth now, or what you sold for.

Common mistakes to avoid.

  1. 01
    Ignoring time.A 50% ROI in 5 years is far worse than 50% in 1 year. Always annualise.
  2. 02
    Forgetting opportunity cost.Compare to the alternative — index funds, savings, a different project.
  3. 03
    Hidden costs.Taxes, fees, your own time. ROI without these is fiction.
  4. 04
    Cherry-picked windows.Don’t measure from the bottom of a dip. Measure full periods.

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