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Break-even ROAS calculator

Find the advertising return needed to cover variable costs and your maximum acquisition cost per order.

Your scenario

All amounts use the selected currency. No currency conversion is performed.

Results

Break-even ROAS
2.50×
Break-even CPA
$40.00
Contribution margin
40.00%

Include fulfillment, transaction fees and expected returns. This covers variable costs; fixed overhead and desired profit require a stricter target.

Calculations stay in your browser. Saving stores one scenario per tool on this device.

How to use this tool

Replace the example values with your own inputs. Results update as you type. Keep your measurement period and definitions consistent, then use the result to inform the next question in your advertising review.

The formula

Break-even ROAS = revenue ÷ (revenue − variable costs). Break-even CPA = revenue − variable costs.

Worked example

An order worth 100 with 60 variable costs leaves 40 for acquisition. Break-even ROAS is 2.50×.

What the result can tell you

Include fulfillment, transaction fees and expected returns. This covers variable costs; fixed overhead and desired profit require a stricter target.

Is it free, and where do my inputs go?

The tool runs in your browser without an account or an ad-platform connection. Calculation inputs are not sent to WhatWins. If you save a scenario, it stays in this browser on this device.

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