Break-even Sales Calculator

What this calculator does

If you've ever opened a spreadsheet just to answer one business & marketing question, this break-even sales calculator replaces the whole workbook: type the numbers, read the result.

Break-even sales is the revenue level where profit is zero.

Common mistakes

• Using gross margin vs contribution margin
• Ignoring semi-fixed costs
• Not stress-testing

When to use it

Use for planning and pricing.

Pro tips for the Break-even Sales Calculator

• For big decisions, run best-case, expected, and worst-case scenarios and compare the breakdowns side by side.
• Copy the result to paste it directly into email, Notion, or a spreadsheet cell.
• Use Print / PDF to export a clean, ad-free summary you can share with a client or advisor.

Frequently asked questions

›CM vs GM?

CM subtracts variable costs only.

›Multi-product?

Use weighted CM.

›Target profit?

Add target profit to fixed costs.

›Cash break-even?

Excludes non-cash items like D&A.

›Margin of safety?

% above break-even.

›Does the Break-even Sales Calculator store the numbers I enter?

No. All math runs locally in your browser — nothing is sent to a server, and closing the tab discards the inputs unless you save them to favorites.

›How accurate is this break-even sales calculator?

The formulas match the standard textbook definition shown above. Rounding is applied only for display; underlying computation uses full floating-point precision. For regulated business & marketing decisions, always confirm with a qualified professional.

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