PPC Break-Even Calculator
Find the ACoS at which your Amazon ads stop being profitable, plus a healthy target ACoS and break-even bid.
Inputs
Optional PPC inputs
Results
ACoS scale
Your break-even ACoS is 53.3%. Any campaign running below this is profitable. Aim for 37.3% to protect a healthy margin.
How to use this tool
- 1
Enter your product selling price and total landed cost (including FBA fees and referral fees).
- 2
The tool instantly shows your break-even ACoS and a healthy target ACoS.
- 3
Optionally enter your average CPC and conversion rate to see break-even bid and cost per acquisition.
- 4
Use the visual scale to see where your campaigns should sit relative to break-even.
Use cases
Setting ACoS targets for new campaigns
Know your ceiling before you launch so you never overspend on unprofitable keywords.
Auditing existing campaigns
Compare your current ACoS against the break-even threshold to identify which campaigns are losing money.
Bid optimization
Use the break-even bid calculation to set maximum bids that keep every click profitable.
Pitching ad budgets internally
Show stakeholders exactly where the profitability line sits with clear numbers.
Frequently asked questions
What is ACoS?+
Advertising Cost of Sale. It is your ad spend divided by ad revenue, expressed as a percentage. Lower is better.
What is a good ACoS?+
It depends on your margins. This tool calculates your specific break-even ACoS. Aim for 70% of that number to maintain a healthy profit.
Why is the target ACoS set at 70% of break-even?+
Running exactly at break-even means zero profit from ads. The 70% target builds in a margin buffer so your ad-driven sales are still profitable.
Should I include FBA fees in the product cost?+
Yes. Enter your total landed cost: product cost plus FBA fees plus referral fees plus any other per-unit costs. The more accurate your cost input, the more reliable your break-even number.