About the ROI Calculator
Return on investment (ROI) and annualized ROI from the amount invested and amount returned.
Also known as: return on investment, roi formula, marketing roi, lead roi, funnel roi, seo roi.
How to use this calculator
- Enter amount invested, amount returned, period (years).
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
ROI = (return − cost) ÷ cost × 100
Worked example
Using the values pre-filled in the calculator above:
- Amount invested = 10,000
- Amount returned = 14,500
- Period (years) = 2
the calculator returns:
- ROI: 45%
- Annualized ROI: 20.42%
- Net gain: 4,500