2026 Amazon FBA Fulfillment Fee Solver: Lookup per-unit and bulk fulfillment costs across all size tiers and weight bands in real time. Fee schedules are fully user-editable.
1. Select Product Size Tier
2. Package Weight & Order Quantity
Live calculationlbs
Equivalent: 0.75 lbs (12.0 oz)
units
Calculates total fulfillment cost for bulk order
Verify before you act:Amazon FBA & referral fees reflect 2026 fee updates. Verify final numbers in Seller Central.
Fulfillment Fee Output2026 Rates
Per-Unit FBA Fulfillment Fee
$4.24
Total for 100 units = $424.00
Size Tier Used:Large Standard
Weight Band Matched:8+ to 12 oz (0.75 lb)
📌Dimensional Weight Note: Dimensional weight applies for Large Standard and above — measure package dimensions too (L x W x H ÷ 139).
ℹ️Seller Central Disclaimer: Verify exact fees in Seller Central — they vary by ASIN, category, package size/weight, and marketplace.
Fulfillment Fee Across Size Tiers
at 0.75 lbsHighlighted bar indicates active size tier (Large Standard)
Frequently Asked Questions — Amazon FBA Fulfillment Fees
Key facts regarding size tiers, weight limits, and dimensional weight rules
How are Amazon FBA fulfillment fees calculated in 2026?
Amazon FBA fulfillment fees are calculated per unit based on product size tier and shipping weight (or dimensional weight, whichever is greater). Fees cover picking, packing, shipping, customer service, and returns handling.
What is Dimensional Weight and when does it apply?
Dimensional (dim) weight measures package volume (Length x Width x Height in inches divided by 139). Amazon uses dimensional weight for Large Standard and all Oversize size tiers whenever dim weight exceeds actual unit weight.
What is the difference between Small Standard and Large Standard tiers?
Small Standard applies to items weighing up to 16 oz (1 lb) with maximum dimensions of 15 x 12 x 0.75 inches. Large Standard applies to items up to 20 lbs with maximum dimensions of 18 x 14 x 8 inches.
How do weight increments affect oversize fulfillment costs?
Small and Medium Oversize tiers charge a base rate for the first pound plus an additional fee per pound thereafter. Large and Special Oversize tiers include the first 90 lbs in the base rate and charge an add-on per pound over 90 lbs.
How can sellers minimize Amazon FBA fulfillment fees?
Sellers can reduce fulfillment fees by redesigning packaging to fit within smaller size tier boundaries (e.g. shaving half an inch off packaging to qualify for Large Standard instead of Small Oversize) and utilizing lightweight packing materials.
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