What is the contribution margin?

It is the price minus the per-unit cost, the amount each sale contributes toward covering fixed costs.

Why is break-even important?

Until you pass it every sale is chipping away at fixed costs; after it every sale adds profit.

Break-Even Calculator | Tsinglin.tech

Back to Hub

Fixed costs ($)

Price per unit ($)

Cost per unit ($)

—

Work out how many units you must sell to cover your fixed and variable costs. Free, no signup.

How to use Break-Even Calculator

Open the toolNo signup and nothing to install; it works as soon as the page loads.
Set “Fixed costs”
Set “Price per unit”
Set “Cost per unit”
Read the resultChange any input and the result is recalculated immediately.

Worked example with the defaults

BREAK-EVEN POINT · $10,000 fixed ÷ $20.00 margin: 500 units

Nothing you enter leaves your device

All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.

That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.

What this tool does not do

Break-Even Calculator only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.

It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.

Frequently Asked Questions

What is the contribution margin?: It is the price minus the per-unit cost, the amount each sale contributes toward covering fixed costs.
Why is break-even important?: Until you pass it every sale is chipping away at fixed costs; after it every sale adds profit.