Amazon Break-Even ACoS Calculator
Use your current Amazon selling price, product cost, referral percentage, fulfillment fee and other costs to estimate the highest advertising cost of sales you can afford.
Know the highest ACoS you can afford.
Estimate Amazon profit before advertising, then find your break-even ACoS and maximum CPC.
Method: Break-even ACoS = profit before advertising ÷ selling price × 100. Enter the current fees shown in your Seller Central account.
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A clear answer, with the method included.
How to use this amazon break-even acos calculator
- Enter the requested information in the fields above.
- Check that the values match your situation.
- Read the result, then copy it if you need it elsewhere.
The formula
Profit before ads = price − product cost − referral fee − fulfillment − prep − returns allowance. Break-even ACoS = profit before ads ÷ selling price × 100.
Example
For a $29.99 product, current product and Amazon costs determine how much of each sale remains available for advertising before profit reaches zero.
Official reference
Good to know.
Does this automatically know Amazon fees?
No. Enter the current fees for your marketplace, category and product from Seller Central.
What is break-even ACoS?
It is the advertising-cost percentage at which estimated profit reaches zero before fixed overhead and tax.
Why include conversion rate?
Conversion rate helps estimate the maximum CPC corresponding to your pre-ad profit per order.