Calculate net gain
Final value
Initial investment
Net gain
Net gain = Final value − Initial investment
Gombo Tools
Calculadora de ROI
Use this free ROI calculator to measure the return on an investment over a selected period. Enter your initial investment, final value, and investment period to calculate net gain, total ROI, and annual ROI. It is useful for projects, campaigns, assets, and business investment decisions.
Result overview
Initial investment
10,000
Net gain (gain)
5,000
Final value
15,000
- Initial investment
- 10,000
- Final value
- 15,000
- Net gain
- 5,000
- Total ROI
- 50%
- Annual ROI
- 25%
How to calculate ROI
ROI compares the gain or loss from an investment with the amount originally invested. It helps you understand whether an investment created value and how strong the return was over time.
Calculate total ROI
Net gain
Initial investment
100
Total ROI
Total ROI % = Net gain ÷ Initial investment × 100
Calculate annual ROI
Total ROI
Investment period
Annual ROI
Annual ROI % = Total ROI % ÷ Investment period in years
How to use this calculator
- Enter the investment period in years
- Enter the initial investment amount
- Enter the final value or proceeds
- Review the net gain, total ROI, and annual ROI
Examples
Example 1
- Initial investment
- 10,000
- Final value
- 15,000
- Investment period
- 2 years
- Net gain
- 5,000
- Total ROI
- 50%
- Annual ROI
- 25%
Example 2
- Initial investment
- 5,000
- Final value
- 4,000
- Investment period
- 1 year
- Net gain
- -1,000
- Total ROI
- -20%
- Annual ROI
- -20%
Tips
Include all investment costs when entering the initial investment.
Use realistic final proceeds, not projected best-case values.
Compare ROI across similar periods.
Negative ROI means the investment lost value.
ROI does not capture cash flow timing or risk by itself.
Want to track business performance beyond one calculation?
Gombo helps you track revenue, expenses, invoices, payments, and business performance from one connected platform.