Return on Investment (ROI) Calculator
Find your return on investment: enter what you put in and what it's now worth to get the profit and ROI percentage. A quick gauge of whether something paid off. Calculated in your browser.
- 100% free
- Private & safe
- Runs in your browser
Why use ROI Calculator?
ROI Calculator gives you accurate results instantly, with the underlying formula shown so you can trust the numbers.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- ROI = (Final value − Cost) ÷ Cost × 100
- Enter the amount invested.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use ROI Calculator
- Enter the amount invested.
- Enter the final value or return.
- See profit and ROI %.
- Compare options.
Examples
- A $1,000 investment now worth $1,500 is a 50% ROI.
- Comparing the ROI of two projects.
Formulas
- ROI = (Final value − Cost) ÷ Cost × 100
Limitations
- Doesn't account for time; use IRR/NPV for multi-year cash flows.
- Estimate only, not financial advice.
Frequently asked questions
Does it include time?
No — for time-weighted returns use the IRR or NPV tools.
Can ROI be negative?
Yes, if the final value is below the cost.
Stored?
No — local only.
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