How this calculator works
667 units is the break-even point when fixed costs are $10,000, the price is $25, and variable cost is $10. A break even calculator uses break-even units = fixed costs / (price per unit - variable cost per unit). The contribution margin is $25 - $10 = $15, and $10,000 / $15 = 666.67 units. The first whole unit that covers every fixed dollar is 667, and break-even revenue is 667 x $25 = $16,675. At 666 units the contribution is 666 x $15 = $9,990, which is $10 short.
For paid hours instead of unit sales, use the time card calculator, the timesheet calculator, or the punch clock calculator.
Formula
Break-even units = fixed costs / (price per unit - variable cost per unit), rounded up to a whole unit. Break-even revenue = units * price
Worked example
Fixed costs are $10,000, variable cost is $10, and price is $25. Contribution margin is $25 - $10 = $15. Break-even units are $10,000 / $15 = 666.67, so the first whole unit that covers fixed costs is 667. Break-even revenue is 667 x $25 = $16,675. At 666 units the contribution is 666 x $15 = $9,990, which is $10 short.
Inputs
- Total Fixed Costs ($)
- Variable Cost per Unit ($)
- Price per Unit ($)
Common mistakes
- Dividing fixed costs by the selling price and ignoring variable cost, which understates the units you need.
- Entering total variable costs for a period instead of variable cost per unit.
- Stopping at 666 units when the exact result is 666.67. Those 666 units cover only $9,990 of $10,000 in fixed costs.
- Treating break-even revenue as equal to fixed costs. Revenue also has to pay the variable cost of each unit sold.
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