Break Even Formula
The Break-Even Formula is a vital tool for entrepreneurs to determine the minimum number of units a business must sell to cover all its costs, indicating the point where it neither makes a profit nor incurs a loss.
Formula
Copy the exact expression or work through it step by step below.
Break-Even Units = Fixed Costs / (Price Per Unit - Variable Cost Per Unit) Variables
BU
Break-Even Units
The break-even units value plugged into the break even calculation.
FC
Fixed Costs
The cost-side input that anchors the break even math.
PU
Price Per Unit
The cost-side input that anchors the break even math.
VCU
Variable Cost Per Unit
The cost-side input that anchors the break even math.
Step By Step
- 1
Set the baseline case with the real calculator inputs.
Mode = Single, Fixed Costs = $20,000, Target Profit = $10,000, Planned Units = 350
- 2
Translate rates, periods, and cash values onto the same footing before combining them.
Keep the break even assumptions consistent instead of mixing monthly and annual views.
- 3
Apply the formula and read the first calculator outputs, not just the headline assumption.
The calculator lands with contribution margin per unit at $90.00 and contribution margin ratio at 60.0%.
- 4
Run one changed scenario so the formula is stress-tested before it is trusted.
The break even units calculator page is the fastest way to compare that second case.
Worked Example
Break Even sample case
Mode
Single
Fixed Costs
$20,000
Target Profit
$10,000
Planned Units
350
Break-Even Units = Fixed Costs / (Price Per Unit - Variable Cost Per Unit) using mode Single, fixed costs $20,000, target profit $10,000, planned units 350.
The calculator lands with contribution margin per unit at $90.00 and contribution margin ratio at 60.0%.
Common Variations
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Sources & References
- Principles of Accounting, 23rd Edition — McGraw-Hill Education
- Entrepreneurship: Theory, Process, Practice — Cengage Learning
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