Contribution Margin Calculator
Calculate contribution per unit, contribution margin ratio and the amount available to cover fixed costs.
Business calculator
This advanced calculator is included with the Business plan and higher.
Compare plansProfitability
Contribution Margin Calculator
Calculate contribution per unit, contribution margin ratio and the amount available to cover fixed costs.
Decision intelligence
Turn the result into a decision
What this means
Focus on direction, sensitivity and cash impact rather than treating a single output as a forecast guarantee.
Stress-test it
Review the Base result, then test a downside case before making a material commitment. Pay particular attention to cash impact and assumptions you can control.
Next step
Continue through the Grow journey with a related planning tool below.
How to use this calculator
Calculate contribution per unit, contribution margin ratio and the amount available to cover fixed costs.
Formula & methodology
The calculator applies the inputs shown above using the formula or model appropriate to this business metric.
Worked example / approach
Enter realistic current figures first, calculate a Base case, then change the assumptions that management can actually influence.
How to interpret the result
Focus on direction, sensitivity and cash impact rather than treating a single output as a forecast guarantee.
Limitations
Results depend on the accuracy of your inputs and assumptions. Regulatory, tax and market-specific outcomes can require additional information not captured by a planning calculator.