What does this tool do?
The Break-Even Calculator finds the break-even point from fixed costs, price per unit and variable cost per unit. It shows how many units you must sell and how much revenue you need to turn a profit.
How to use it
- Enter your values into the fields.
- The result is calculated instantly.
- Read or copy the result.
The method
The contribution margin per unit = price/unit − variable cost/unit. Break-even units = fixed costs / contribution margin, and break-even revenue = those units × price/unit. If the price is below the variable cost, break-even is never reached.
Common use cases
Founders use it when writing a business plan, production teams to test whether a new product is viable, and retailers to gauge the risk of promotional discounts. It clarifies when you will recover a fixed investment.
Frequently asked questions
What is the contribution margin?
It is the portion of each unit sold that is left to cover fixed costs — price/unit minus variable cost/unit — and it forms the denominator of the break-even units formula.
What if my unit price is below the variable cost?
The contribution margin becomes negative, every sale deepens the loss and the break-even point is undefined; you must raise the price or lower the variable cost.
Is Break-Even Calculator free?
Yes. Break-Even Calculator and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. Break-Even Calculator works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.