Break-Even Calculator
Find break-even units or sales from fixed costs, variable cost per unit, and selling price. Runs locally in your browser. Free online tool — no sign-up.
Trust summary Engine tested · Specification checked · v1.1.0
- Input interpretation
- Enter values to calculate.
- Result
- —
- Model
- Break-even units, contribution per unit, and revenue at break-even.
- Scope
- Fixed rates and terms as entered; no fees or taxes unless modeled.
- Verification
- Engine tested · Specification checked · v1.1.0
- Named expert review
- Optional · Not performed
- Specification basis
- Managerial accounting (contribution margin) — break-even units = fixed cost / (price − variable cost)
- U.S. Small Business Administration education — break-even analysis for pricing and cost planning
Formulas
Core equations used by this calculator.
How to use
Enter the known values
Fill in each field with amounts and rates as labeled.
Calculate
Results update as you type; compare scenarios below when available.
Read the outputs
Check the result panel for the primary figure and supporting totals.
Example calculations
Common configurations with formula and result.
Worked example
Fixed 50,000 · Price 40 · Variable 22 → 2,777.78 units
Break-Even calculator specification
Version 1.1.0 · Engine tested
- Engine tested 3 published cases
- Named expert review Not performed
- Calculation version 1.1.0
- Definition
- Break-even is the sales volume where total contribution equals fixed costs. Units = fixed / (price − variable cost).
- What it calculates
- Break-even units, contribution per unit, and revenue at break-even.
- Inputs
- Values shown on the calculator form
- Outputs
- Primary result in the result panel
- Formula
Units = fixed / (price − variable)- Assumptions
- Fixed rates and terms as entered; no fees or taxes unless modeled.
- Calculation runs locally in the browser.
- Units
- Currency units as entered (dimensionless rates in %)
- Boundary conditions
- Zero or missing required fields yield zero or empty results.
- Negative inputs are treated as zero.
- Example
- Fixed 50,000 · Price 40 · Variable 22 → 2,777.78 units
- Validation cases
3 published on this page
- 50000 / (40−22) → 2777.78 units
- price = variable → 0 units (no contribution)
- 10000 / (20−10) → 1000 units
- Specification basis
- Managerial accounting (contribution margin) — break-even units = fixed cost / (price − variable cost)
- U.S. Small Business Administration education — break-even analysis for pricing and cost planning
- Calculation version
- 1.1.0
Background
Interpretation and common distinctions.
About this calculator
Break-even is the sales volume where total contribution equals fixed costs. Units = fixed / (price − variable cost).
Example
Fixed 50,000 · Price 40 · Variable 22 → 2,777.78 units
Related tools
Other calculators in this family: Compound Interest, Simple Interest, ROI Calculator .
Frequently asked questions
Key distinctions behind the calculation.
How does the Break-Even Calculator work?
It uses Units = fixed / (price − variable). All math runs locally in your browser.
Can I share my inputs?
Yes. Use Copy link in the result panel — the URL stores your current inputs.