ROI Calculator
A single-period return calculator: gain versus capital outlay.
It measures ROI for one period — not annualised (use CAGR for compound annual).
Use it for a quick go/no-go on a one-shot outlay before you build a full cash-flow model.
Signal Lab · Model
ROI Calculator
ROI (return on investment) — gain versus capital outlay for a single period. Not annualised — use the CAGR Calculator when you need a compound annual rate.
Illustrative sample until you enter actuals. Not financial advice.
Initial investment and final value
Two fields. Persist locally · Jump to results
Gain and return
Absolute gain, ROI %, and break-even value (= initial).
Equations
- AbsoluteGain = Final − Initial
- ROI = (Final − Initial) ÷ Initial · not annualised
- BreakEvenValue = Initial
How this is calculated
- ROI (return on investment) = (Final − Initial) ÷ Initial — a simple period return, not a CAGR
- Absolute gain = Final − Initial
- Break-even value = the initial outlay (gain is zero when Final equals Initial)
Illustrative — not financial advice. For multi-year annualised growth use CAGR.
Take it with you
Download a prompt, export the Excel workbook, or email yourself.
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