Break-Even Units Calculator

How to use the Break-Even Units Calculator

Estimate the minimum whole units required to cover fixed costs. Enter fixed costs for your chosen period, selling price per unit and variable cost per unit.

Formula

Contribution per unit = price − variable cost; break-even units = round up(fixed costs ÷ contribution).

Worked example

Fixed costs of $1,000, a $30 selling price and $18 variable cost give $12 contribution. 1,000 ÷ 12 = 83.33, so 84 whole units are needed, generating $2,520 revenue.

Interpretation and limitations

Price must exceed variable cost. Fixed costs and sales must use the same period. The model assumes one product or a stable weighted-average sales mix.

Break-Even Units questions

Why is the answer rounded up?

83 units contribute $996 and leave a $4 shortfall. 84 units contribute $1,008 and cover the fixed costs.

Are fixed costs charged again per unit?

No. Enter fixed costs once for the period; variable costs belong in the per-unit field.

Continue your calculation

For the next step, use the Break-Even Revenue Calculator or the Target Profit Units Calculator. Review each tool’s input definitions before carrying a result into another calculation.

Frequently asked questions

Is this calculator free?

Yes. It runs in your browser and does not require an account.

How should I use the result?

Use the result as a planning estimate and verify business-critical decisions against your source records.