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Contribution Margin Calculator
Calculate contribution margin after variable product and selling costs.
Enter Your Details
Currency changes the displayed symbol only; no exchange-rate conversion is performed.
Calculation Results
Contribution Margin
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Contribution amount
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Variable cost ratio (%)
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Sales
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Formula: Contribution margin = (sales − variable costs) / sales × 100
About this calculator
Calculate contribution margin after variable product and selling costs. Use the result as a planning estimate and adjust inputs for your own products, marketplace terms, shipping costs and business expenses.
How to use this calculator
What to enter
Enter or select the following as requested: Currency; Sales Revenue; Variable Costs. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
Contribution margin is selling price or total sales minus the variable costs included. Per-unit contribution is the amount from each unit available to cover fixed costs and then profit.
When to use it
Use this to evaluate unit economics, pricing, and how much sales contribute toward fixed costs.