ROI Calculator
See how much an investment returned, as a percentage, per year and in dollars.
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| ROI | 50% |
| Net profit | 2,500 |
| Annualized ROI | 50% |
| Multiple | 1.5× |
Math: (7,500 − 5,000) ÷ 5,000 × 100
Quick answer: To calculate ROI, enter how much you invested and how much you got back in total: ROI = (return − investment) ÷ investment × 100. Add the time period in months to see the annualized ROI and compare investments of different lengths.
How to do it in 3 steps
- 1Enter the amount invested.
- 2Enter the total return and the period.
- 3See ROI, net profit and annual ROI.
Why use Pronto Arquivo
Annualized ROI
Compare investments that ran for different lengths of time.
Multiple
How many times your money came back.
Marketing and business
Ad campaigns, courses, equipment and franchises.
Formula shown
The math appears with your own numbers.
Guides
ROI on ads
Use the gross profit from the campaign’s sales as the return, not the revenue, so you don’t overstate the result.
Frequently asked questions
How do I calculate ROI?
(Return − investment) ÷ investment × 100.
What is a good ROI?
It depends on risk and time; compare it with what a high-yield savings account or Treasury bills would pay over the same period.
What is annualized ROI?
The equivalent return per year, useful for comparing different time periods.
Can ROI be negative?
Yes, when you get back less than you invested.
