ROI Calculator for Amazon Ads
Calculate the ROI of your Amazon Ads campaigns including ACoS, Amazon fees and FBA costs. Know your real profitability after all deductions. Free, instant, no sign-up required.
Enter your Amazon Ads campaign data to see profitability
ROI, ROAS, CPA and estimated profit
Note about Amazon Ads attribution
Amazon reports ACoS (Advertising Cost of Sale) rather than ROAS. ACoS = Ad Spend ÷ Revenue × 100 (equivalent to 1/ROAS × 100). ACoS does NOT deduct Amazon referral fees (8–15%) or FBA fees. Your real margin is significantly lower than it appears.