Amazon FBA Fulfillment Fees (2026): How to Estimate Costs
Published on January 10, 2026
Updated Jan 16, 2026
FBA fulfillment fees depend on size tier and weight. Use official examples to estimate your fee, then enter that amount into a profit calculator for a realistic margin.
Quick fee formula (2026)
Use the official size tier table for your exact fee| Fee component | Formula / note |
|---|---|
| Fulfillment fee | Size tier fee + weight handling (marketplace specific). |
| Referral fee | order total x category rate |
Example: If your FBA fee is $4.50, add $4.50 as a per-order cost in the calculator.
Open FBA demoExample uses a $4.50 placeholder FBA fee.
What drives FBA fulfillment fees
- Size tier and shipping weight.
- Category-specific rules or handling.
- Optional services like prep or labeling.
How to estimate your FBA fee
- Check Amazon's official FBA fee examples and size tiers.
- Match your product's dimensions and weight.
- Use that fee as a per-order cost in the calculator.
Related tools
Related calculators & long-tail topics
- Amazon fee calculator
- Amazon referral fees by category
- Amazon FBA fulfillment fees
- Amazon FBM vs FBA fees
- Do Amazon fees include shipping?
- Compare Amazon scenarios
Sources
FAQ
What determines the FBA fulfillment fee?
Fees depend on size tier, shipping weight, and sometimes category-specific rules.
Where can I find official fee examples?
Amazon's FBA page includes official examples and size tier guidance.
How should I model FBA in a calculator?
Use the estimated per-unit FBA fee as a fixed cost per order.