How to use the ROI Calculator
- Enter the total cost of the investment.
- Enter the total amount it returned.
- Optionally add how many months it took, then press Calculate.
Formula
ROI = (amount returned − cost) ÷ cost × 100
Annualised ROI = (returned ÷ cost)12 ÷ months − 1
Examples
- 5,000 in, 7,200 back: ROI = 44%. Over 6 months that is about 107% annualised.
Frequently asked questions
How is this different from ROAS?
ROAS uses revenue; ROI uses profit. Use the cost of goods and all expenses in the cost figure for a true ROI.
Is there a longer-term version?
For investments held over years with income, use the Investment Return Calculator.