Break-even calculator
Fixed costs a month, the price and the variable cost of one unit. See how many units you must sell to break even, and the profit at your expected sales.
- Pricing a new product
- Opening a new branch
- Checking if a deal is worth it
Costs and price
Break-even
General information, not legal or tax advice. Rules change and differ by state; check with your CA or labour consultant before you act. Everything you type stays in your browser.
Made for people like you
How to use it
- Enter fixed costs a month.
- Enter the price and the variable cost of one unit.
- See break-even units, revenue and profit at expected sales.
Good to know
Contribution margin
Price minus variable cost. It is what each sale contributes towards fixed costs and then profit.
Break-even units
Fixed costs divided by contribution margin. Below this you lose money; above it you make profit.
Margin of safety
How far expected sales can fall before you make a loss, as a % of expected sales.
Keep it simple
Treat costs that change with each sale as variable and the rest as fixed. Review them each quarter.
Questions people ask
Is it free? Do I need to sign up?
Yes, it is free and you do not need to sign up. Open it and use it as often as you like.
Is my data safe?
The numbers are worked out in your browser. Nothing you type is sent to USR unless you choose to email yourself the result.
How accurate is the result?
It is an estimate based on the rules shown on this page as of November 2026, not legal or tax advice. Rules and rates change, so check with your CA before you act.
What counts as a fixed cost?
Costs you pay whether you sell or not: rent, salaries, software, loan interest.
What if I sell services?
Treat one hour, one project or one month of service as a unit.
Know your margins by product and branch
USR Books and USR Insights show revenue, costs and profit by product, branch and month.
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