ROI calculator
Compute return on investment: net gain, ROI % and annualized ROI.
- Instant
- Free
- Private (processed locally)
- No sign-up
Measure how profitable an investment is
Enter the amount invested and the final value: the tool shows the net gain, ROI in %, the multiple and, if you give the duration, the annualized ROI.
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Amount invested
What you put in.
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Final value
What you get back.
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Duration (optional)
For the annualized ROI.
Example: 1000 invested, 1500 back in 3 years
| Measure | Value |
|---|---|
| Net gain | 500 |
| ROI | 50% |
| Multiple | × 1.50 |
| Annualized ROI | ≈ 14.47% |
ROI = gain ÷ invested; annualized = (final ÷ invested)^(1/years) − 1. Estimate excluding fees and taxes, not financial advice.
Frequently asked questions
How is ROI calculated?
ROI = (final value − amount invested) ÷ amount invested, as a percentage. Example: investing 1000 and getting back 1500 gives a 500 gain, i.e. a 50% ROI.
What is annualized ROI?
It brings the return to a yearly basis to compare different durations: (final value ÷ invested)^(1/years) − 1. For 1000 → 1500 over 3 years, the annualized ROI is about 14.47%.
Why does total ROI differ from annualized?
Total ROI (50%) covers the whole period. Annualized (14.47%) is the equivalent compounded yearly rate. Three years at 14.47% compounded indeed gives +50%.
Does ROI account for fees and taxes?
No, unless you include them yourself. For net ROI, add fees to the amount invested and remove taxes from the final value. It is an estimate, not financial advice.