Break-Even Calculator Calculators
How many units you need to sell before you start making money.
Break-Even Calculator is a free online tool that how many units you need to sell before you start making money. It runs entirely in your web browser using plain JavaScript, so files are processed on your own device and never uploaded to a server. There is no sign-up, no file size limit imposed by the site, no watermark and no paid tier.
- Price
- Free — no account, no quota, no watermark
- Category
- Calculators
- Where it runs
- In your browser, on your device
- Files uploaded
- None
- Technology
- plain JavaScript
- Settings
- 4
- Works offline
- Yes, after the first visit
About Break-Even Calculator
The break-even point is fixed costs divided by the contribution per unit — what each sale adds after its own variable cost. If the contribution is zero or negative, no volume saves you, which is the single most useful thing this calculation tells a new business.
How to use it
- Enter fixed costs, price per unit and variable cost per unit.
- Adjust the remaining 1 setting if the defaults do not fit your case.
The 4 settings
| Setting | What it does | Default |
|---|---|---|
| Fixed costs | A numeric value. | 5000 |
| Price per unit | A numeric value. | 25 |
| Variable cost per unit | A numeric value. | 10 |
| Currency | Choose from 7: USD $, GBP £, EUR €, INR ₹, AUD A$, CAD C$…. | USD $ |
Under the hood
| Runs on | plain JavaScript — runs the whole thing |
| Controls | Fixed costs, Price per unit, Variable cost per unit, Currency |
Questions
What counts as a fixed cost?
Anything that does not change with volume: rent, salaries, software, insurance. Variable costs move per unit — materials, packaging, payment fees, shipping.
What does the currency option change?
It offers 7 choices — USD $, GBP £, EUR € and INR ₹ and more. The default is USD $, which suits most cases; change it when your input or your destination calls for something specific.
Is the arithmetic exact?
It uses double-precision floating point — about 15 significant figures, far more than the inputs justify. Displayed rounding is cosmetic; the underlying numbers are not rounded between steps, so chained results do not drift.