Amazon Ads Efficiency Calculator
How efficient is my Amazon advertising spend?
Your numbers
Result
Actual ACoS
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How this is calculated
Measure the efficiency of your Amazon advertising spend across campaigns, ad groups, and products. Identify where to reallocate budget for maximum impact.
- ACoS = ad spend / ad-attributed sales x 100%
- ROAS = sales / ad spend
- CPC = ad spend / clicks
What to make of the number
Healthy ACoS varies by product stage: launch phase 25-40%, growth 15-25%, mature 10-20%.
Frequently asked questions
What is a good ACoS?
Under 20% for profitable products, 25-40% during launch phase.
How do I improve ACoS?
Optimize keywords, negative match poor performers, adjust bids, improve listing quality.