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How to Find Your Break-Even Point

Fixed costs, contribution margin, and the unit count where a business stops losing money.

4 min read

Step by step

  1. Contribution margin = price − variable cost per unit.
  2. Break-even units = fixed costs ÷ contribution margin, rounded up.
  3. Example: $10,000 fixed, $30 margin → 334 units per month.
  4. Multiply by price for the break-even revenue target.

Key takeaway: Every sale above break-even earns the full contribution margin.

The break-even formula

Break-even units = fixed costs ÷ (price − variable cost per unit). The denominator — price minus variable cost — is the contribution margin: what each sale contributes toward covering fixed costs.

Example: $10,000 of monthly fixed costs, a $50 price and $20 of variable cost per unit gives a $30 contribution margin, so break-even is 334 units per month (always round up).

Reading the result

Below break-even you lose money on every month that continues; above it, each additional unit earns the full contribution margin as profit. The break-even point is where total revenue exactly equals total cost.

Express it in revenue too — 334 × $50 = $16,700 — because revenue targets are often easier to track than unit counts.

Using it for decisions

Break-even analysis stress-tests ideas before you commit: if break-even requires capturing 20% of a small local market, the plan is fragile. If it needs 50 units and you can realistically sell 500, the cushion is large.

Small price changes move break-even sharply. Raising the example price from $50 to $55 cuts break-even from 334 to 286 units — pricing is the most powerful lever most businesses have.

Do it automatically

Units and revenue needed to cover fixed and variable costs.

Open the Break-Even Calculator