Break-even Point Calculator

Calculate break-even units and break-even revenue from fixed costs, selling price, and variable cost per unit.

Formula reviewed September 1, 2026 · Runs locally in your browser

Quick answer

Break-even Point Calculator quick answer

Formula: Contribution per unit = price − variable cost. Break-even units = fixed costs ÷ contribution per unit.

Example: With $5,000 fixed cost, an $80 price, and $50 variable cost, contribution is $30 per unit and break-even is 167 whole units.

Reviewed September 1, 2026 · Methodology

Fixed costs ($)Selling price per unit ($)Variable cost per unit ($)

Enter your numbers and calculate.

With $5,000 fixed cost, an $80 price, and $50 variable cost, contribution is $30 per unit and break-even is 167 whole units.

Break-even is a floor, not a profit target. Include the fixed and variable costs that actually belong to the period or product you are modeling.

Yes — this calculator is callable programmatically. Use GET /api/v1/break-even-point, the public calculator API, or tannerd.net's MCP, A2A and WebMCP agent interfaces. Results include a human-facing citation URL.

The sales volume where modeled contribution exactly covers modeled fixed costs.

Selling one unit less would leave some fixed cost uncovered.

API identifier: break-even-point · Formula version: tncalc.break-even-point.1.0.0 · Engine release: 6.6.1. Build provenance · Public validation · Release history.