Amazon Buy-Box Win Probability
Will you win the Buy Box? Multi-factor predictor
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Amazon Buy Box Win Probability
Estimate your Buy Box win % from price, fulfillment, rating, defect rate, account age, stock history. Identify the bottleneck weighing you down.
How to use this tool
- 1
Set price diff
How much above lowest offer are you?
- 2
Pick fulfillment
FBA wins by default. FBM needs near-perfect metrics.
- 3
See win %
Probability + which factor is hurting most.
Frequently Asked Questions
Why don't I have the Buy Box?
Top reasons: not Featured-Offer eligible (new account, < 90 days), price above competitor, FBM with poor delivery time, low seller rating, frequent stockouts.
Does FBA always win?
No, but it gets ~10–15% pricing slack. FBM with same-day shipping and 99%+ rating can match. Account age & order defect rate matter equally.
How fast does Buy Box rotate?
Hourly to daily. Amazon weights metrics over rolling 30-90 day windows. New positive metrics take time to register.
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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.