# ROI & break-even calculator — no upload

> Calculate return on investment and the break-even point from cost, revenue, and gain. Runs in your browser, no upload. Informational only.

Calculate return on investment as a percentage and find the break-even point from your costs and returns. The math runs on your device and is for information, not advice.

ROI is the quickest way to compare opportunities on one number, and break-even tells you the sales or usage needed just to cover costs. Together they frame whether an investment or project is worth it.

Because ROI ignores time, use the CAGR/XIRR calculator when comparing investments held for different periods, and the Inflation calculator to check whether a nominal gain is real.

## How to

1. **Enter the cost.** Add the amount invested or the fixed cost.
2. **Enter the return.** Add the gain, revenue, or per-unit margin.
3. **Read ROI.** See the ROI percentage and break-even point.

## FAQ

### How is ROI calculated?

ROI = (gain − cost) ÷ cost, expressed as a percentage. A $200 gain on a $1,000 investment is a 20% ROI.

### What does break-even mean?

The point where total revenue equals total cost, so you've neither made nor lost money — useful for pricing and deciding how many units you must sell.

### Is this financial advice?

No. It's a straightforward calculation for comparison; it ignores time, taxes, and risk, so combine it with other measures for real decisions.


## Related tools

- [CAGR & XIRR](https://www.safepaper.app/finance/returns-xirr)
- [Inflation & PV](https://www.safepaper.app/finance/inflation)
- [Compound interest](https://www.safepaper.app/finance/compound-interest)
- [Loan & mortgage](https://www.safepaper.app/finance/loan-amortization)

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Canonical HTML: https://www.safepaper.app/finance/roi
Markdown: https://www.safepaper.app/finance/roi.md

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