ROI Calculator
ROI measures how much an investment gained, as a percentage — the universal way to compare campaigns, projects and investments of different sizes. Enter what you put in and what came back.
Your numbers
Result
- Profit
- $500.00
| Item | Value |
|---|---|
| Investment | $1,000.00 |
| Amount returned | $1,500.00 |
| Profit (return − investment) | $500.00 |
How to calculate ROI
The formula is ROI = (return − investment) ÷ investment × 100. Putting in $1,000 and getting $1,500 back is $500 profit and a 50% ROI. A negative ROI means a loss — the return came back smaller than the investment.
ROI ignores time
Because it is a percentage, ROI lets you line up investments of any size. But it says nothing about time — 50% in one month is far better than 50% over five years. For financial investments, also compare an annualized rate; for campaigns, keep the measurement window consistent.
Frequently asked questions
Sources
- Investment analysis — return on investment
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