Free Tools for Ecommerce and Amazon Teams.

Calculators for the numbers behind paid media and Amazon ads. Free to use with no sign-up, and what you type stays in your browser.

Ad and margin calculators.

Check whether paid media and Amazon ads make money at your margin, before you change a bid or a budget.

Amazon · Shopify · Meta · Google

Work out break-even ROAS and ACOS

Takes VAT, GST or sales tax out of your price, includes Amazon or store fees, and checks your actual ROAS, ACOS and TACOS against break-even.
Open the calculator
Amazon · Meta · Google

Convert ACOS to ROAS

Type an ACOS to get the ROAS, or the other way round. Useful when Amazon reports one and your other channels report the other.
Open the converter

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Tell us which number your team still works out in a spreadsheet every week. We add new tools to this page as we build them.