Break-even ACOS Calculator

Find the ACOS level where your pre-ad contribution margin reaches zero.

Selling price ($)

Product cost ($)

Inbound shipping ($)

FBA fee ($)

Referral fee (%)

Pre-ad profit$7.29

Break-even ACOS36.5%

Formula: pre-ad profit ÷ sales price. At this ACOS, advertising consumes the full pre-ad contribution margin.