Break-even Calculator
Break-even calculator
Find break-even units and revenue from fixed cost, price, and variable cost.
InputsForm3 fieldsLive
Quick scenarios
Break-even volume
666.667 units
Revenue $30,000.00 • Contribution $18.00/unit.
Live update
Fixed costs
$12,000.00
Contribution / unit
$18.00
Contribution ratio
40%
Break-even revenue
$30,000.00
Advanced options
- Planning target: 667 units (exact 666.667).
- Contribution per unit: $45.00 − $27.00 = $18.00.
Unit economics snapshot
Contribution per unit is the gap that pays down fixed costs.
Unit price$45.00
Variable cost / unit$27.00
Contribution / unit$18.00
Break-even basics
Single price and variable-cost assumptions across all units.
- Break-even units = fixed costs ÷ contribution per unit.
- Break-even revenue = break-even units × unit price.
- Price and variable cost are treated as constant.
- Taxes, financing, discounts, and step-fixed costs are excluded.
Flow
- Enter total fixed costs for the period.
- Enter selling price per unit and variable cost per unit.
- Read break-even units and break-even revenue in the live result panel.
Example
Worked example: break-even for a small product line
- 1 Fixed costs = 12,000
- 2 Selling price per unit = 45 and variable cost per unit = 27
- 3 Break-even units = 12,000 / (45 - 27) = 666.67 units
You need to sell about 667 units to break even.
How
- Enter total fixed costs for the period.
- Enter selling price per unit and variable cost per unit.
- Read break-even units and break-even revenue in the live result panel.
Avoid
- Using variable cost totals instead of variable cost per unit.
- Ignoring fixed costs that still apply to the product period.
- Entering selling price lower than variable cost, which makes break-even impossible.
FAQ
What does break-even units mean?
It is the sales volume where total revenue equals total cost, so profit is zero.
Can break-even units be a decimal?
Yes. In practice, round up to the next whole unit to fully cover costs.
Why does the calculator reject non-positive contribution margin?
If selling price is not greater than variable cost, each unit cannot contribute toward fixed costs.
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