Estimate your Amazon referral fee, FBA fulfillment fee, and net profit in seconds. Enter a sale price and weight (add dimensions for a more accurate size tier) to see where your margins land before you buy.
Estimates only. Actual Amazon FBA fees depend on live size-tier and referral rules, dimensional weight, and seasonal surcharges. Provide dimensions for a more accurate size-tier estimate.
Fees, profit, ROI, sales estimates, scores and risk flags are automated estimates — not financial, business, or legal advice. Always verify in Amazon Seller Central before buying stock. Full disclaimer
Gridwinner analyzes your entire supplier list in seconds: FBA fees, ROI, and winners, all at once.
Analyze your whole supplier listSelling on Amazon FBA involves two main fee types. The referral feeis Amazon's commission, a percentage of the total sale price that varies by category (commonly 15%, but 8% for many electronics and grocery items and up to 17%+ for apparel). The FBA fulfillment feecovers picking, packing, and shipping, and is determined by the product's size tier.
Size tiers escalate from small standard (light, flat items) to large standard, then oversize. Heavier and bulkier products cost more to fulfill, which is why entering accurate weight and dimensions matters. Your net profit is simply your sale price minus unit cost minus total Amazon fees.