ROI Calculator
Calculate return on investment as a simple percentage and as an annualized rate, so returns over different time periods compare fairly.
ROI
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Net profit —
Annualized return —
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How it works
ROI = (gain − cost) ÷ cost × 100; annualized = ((final/cost)^(1/years) − 1) × 100Frequently Asked Questions
How do I calculate ROI?
Subtract what you put in from what you got back, then divide by what you put in: turning $10,000 into $13,500 is a 35% ROI regardless of how long it took.
Why annualize ROI?
A 35% return over 5 years (≈6.2%/yr) is far weaker than 20% in one year. Annualizing converts every investment to a per-year rate so they compare honestly.
Should costs like fees be included?
Yes — ROI is only meaningful on all-in numbers: purchase price plus fees, taxes and improvements versus net sale proceeds.