What is contribution margin?

Contribution margin is the selling price per unit minus the variable cost per unit. It represents the portion of sales revenue that contributes toward covering fixed overhead costs.

Updated: August 2026 • Verified v1.2

Break-Even & Margin Profitability Calculator

Business & OfficeProductivity

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Break-Even Units = Fixed Costs / (Price - Variable Cost); CM Ratio = (Price - Variable Cost) / Price

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Understanding Your Results

Calculates exact break-even units, revenue threshold, contribution margin ($ and %), and interactive monthly net profit/loss projections.

Practical Guidance & Next Steps

Increasing selling price or decreasing variable costs increases the contribution margin, dramatically reducing the number of units required to break even.

What is this?

A managerial economics calculator that determines the exact sales volume needed to cover fixed and variable business costs.

How does it work?

1. Enter Total Fixed Costs (monthly overhead). 2. Enter Variable Cost per unit and Selling Price per unit. 3. Instantly view Break-Even Units, Break-Even Revenue, and adjust the profit simulator slider.

Why use it?

Essential for pricing strategy, startup financial modeling, product launch validation, and business plans.

Technical Scope & Calculation Limitations

Assumes linear variable cost per unit without economies of scale volume discounts.

Frequently Asked Questions

The break-even point is the production or sales level where total revenue exactly equals total costs (both fixed and variable), resulting in zero net profit and zero net loss.

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