ROI Calculator
Calculate your Return on Investment (ROI) as a percentage, from your initial investment and the final value.
About this roi calculator
ROI is one of the simplest and most widely used ways to measure whether an investment, a business decision, or a marketing campaign actually paid off.
How roi calculator works
The formula is: ROI (%) = ((Final Value − Initial Investment) ÷ Initial Investment) × 100. For example, investing $5,000 and ending with $6,500 gives an ROI of ((6500 − 5000) ÷ 5000) × 100 = 30%.
Common uses
- Measuring the return on a stock, property, or business investment
- Evaluating whether a marketing campaign paid off
- Comparing ROI across different investment opportunities
How to use this tool
- Enter your initial investment amount.
- Enter the final value.
- See your ROI percentage instantly.
What to know before using it
This calculates a simple, total-period ROI. It does not account for the time value of money or annualize the return, for comparing investments over different time periods, consider the time held alongside the ROI figure.
Privacy and browser-first processing
This tool runs entirely in your browser using JavaScript. Nothing you enter is uploaded or stored.
Frequently asked questions
What is a good ROI?
This varies hugely by context, a "good" ROI for a stock market investment looks very different from a good ROI for a marketing campaign, compare against relevant benchmarks for your specific situation.
Does ROI account for how long I held the investment?
No, this is a simple total-period ROI, two investments with the same ROI but very different holding periods are not equally good, consider annualizing if comparing across different timeframes.