Amazon FBA Fee Calculator

Enter your sale price, product weight, category, and size tier to calculate your Amazon FBA referral fee, fulfillment cost, and net payout.
Luis GonzalezCreated by Luis GonzalezLast updated:

How to Use This Calculator

  1. 1

    Enter Sale Price and Product Weight

    Input your Amazon listing price and the product's shipping weight in ounces. These two values determine both the referral fee (percentage of price) and the FBA fulfillment fee (based on weight and size tier).

  2. 2

    Select Category and Size Tier

    Choose your product category (referral fees range from 8% to 20%) and size tier (Small Standard, Large Standard, or Large Bulky). Each combination produces a different fee structure.

  3. 3

    Review Fees and Insights

    The calculator displays Seller Receives, Total Fees, Referral Fee, FBA Fulfillment Fee, and Break-even Sale Price. The Insights panel shows fee composition, category comparison, and size tier impact. The breakdown bar visualizes how your sale price splits between fees and net proceeds.

Example Calculation

An Amazon seller lists a 12-ounce general category item at $29.99, classified as small standard-size.

Sale Price

$29.99

Product Weight

12 oz

Product Category

General / Everything Else (15%)

Size Tier

Small Standard-Size

Results

Seller Receives

$21.91

Total Fees

$8.08

Referral Fee

$4.50

FBA Fulfillment Fee

$3.58

Break-even Sale Price

$4.21

Insights card shows referral fee is 56% of total fees, fulfillment is 44%, and switching to Electronics (8%) would save $2.

Tips

Check Fee Composition in the Insights Panel

The Insights panel shows whether referral or fulfillment dominates your fees. For a $29.99 general item, referral is 56% ($4.50) and fulfillment is 44% ($3.58). If referral dominates, switching categories saves more than optimizing weight.

Use the Category Comparison to Find Savings

The Insights panel shows what you'd pay in the lowest-rate category (8%). For a $29.99 item, moving from General (15%) to Electronics (8%) saves $2.10 per sale — $210 over 100 units.

Optimize Size Tier to Reduce Fulfillment Costs

Small Standard is the cheapest tier. A 12oz item costs $3.58 in Small Standard vs $4.24 in Large Standard — $0.66/unit savings. If your product is near a tier boundary, reducing packaging dimensions can drop it to a lower tier.

Use Break-even Price for Minimum Pricing

The Break-even Sale Price ($4.21 for this example) is the minimum price where fees don't exceed revenue. Price at least 2-3x above this to ensure profitability after COGS.

Calculating Your Amazon FBA Fees and Net Proceeds

The Amazon FBA Fee Calculator breaks down the costs of selling through Fulfillment by Amazon.

Enter your sale price, product weight, category, and size tier to see your referral fee, fulfillment fee, total fees, and net seller proceeds.

FBA fees typically represent 15-35% of a product's sale price in 2026, making accurate fee calculation essential for pricing and profitability.

The FBA Fee Formula

Amazon FBA fees consist of two components — referral fee and fulfillment fee:

Referral Fee = Sale Price × (Category Rate / 100)
FBA Fulfillment Fee = Lookup by Weight + Size Tier
Total Fees = Referral Fee + FBA Fulfillment Fee
Seller Receives = Sale Price - Total Fees

For a $29.99 item in the General category (15%) at 12oz small standard:

Referral Fee = $29.99 × 0.15 = $4.50
FBA Fulfillment Fee = $3.58 (12oz, small standard)
Total Fees = $4.50 + $3.58 = $8.08
Seller Receives = $29.99 - $8.08 = $21.91
💡 Selling on multiple platforms? Our Etsy Fee Calculator breaks down listing fees, transaction fees, and payment processing for Etsy sellers.

Worked Example: $29.99 General Category Item

An Amazon seller lists a 12-ounce product at $29.99 in the General category, classified as Small Standard-Size.

  1. Referral Fee: $29.99 × 15% = $4.50
  2. FBA Fulfillment Fee: 12oz small standard = $3.58
  3. Total Fees: $4.50 + $3.58 = $8.08 (26.9% of sale price)
  4. Seller Receives: $29.99 - $8.08 = $21.91
  5. Break-even Sale Price: $3.58 / (1 - 0.15) = $4.21

The breakdown bar shows referral fee ($4.50, 56%) and fulfillment ($3.58, 44%) as portions of total fees.

The Insights panel reveals that switching to an 8% category (Electronics, Baby, etc.) would reduce the referral fee to $2.40, saving $2.10 per unit.

💡 For eBay seller fee comparison, our eBay Fee Calculator shows how final value fees and payment processing compare to Amazon's fee structure.

FBA Fulfillment Fee Schedule (2026)

Size Tier Weight Fee
Small Standard 0-4 oz $3.22
Small Standard 4-8 oz $3.40
Small Standard 8-12 oz $3.58
Small Standard 12-16 oz $3.77
Large Standard 0-4 oz $3.86
Large Standard 4-8 oz $4.08
Large Standard 8-12 oz $4.24
Large Standard 12-16 oz $4.75
Large Standard 16-24 oz $5.40
Large Standard 24-48 oz $5.69-$6.10
Large Bulky 0-20 lbs $9.73

Referral Fee Rates by Category

Rate Categories
8% Electronics, Computers, Camera, Grocery, Health, Beauty, Baby
12% Automotive
15% General, Books, Music, DVD, Software, Sports, Tools, Home, Garden, Office, Pet, Toys, Shoes, Video Games
16% Watches
17% Clothing & Apparel
20% Jewelry

The referral fee is a percentage of the total sale price.

For a $29.99 item, fees range from $2.40 (8% categories) to $6.00 (Jewelry at 20%) — a $3.60 difference per sale.

Optimizing Your FBA Fee Structure

The most impactful optimization depends on which fee component dominates.

For the $29.99 general item, referral ($4.50) is larger than fulfillment ($3.58), so category optimization has more impact than weight reduction.

Weight optimization matters most for products near tier boundaries.

Dropping from 13oz to 12oz saves $0.19 (from $3.77 to $3.58).

Dropping from 17oz to 16oz in Large Standard saves $0.65 (from $5.40 to $4.75).

These savings compound across hundreds or thousands of units.

Price optimization uses the break-even calculation.

At 15% referral with $3.58 fulfillment, the minimum profitable price is $4.21.

Every dollar above break-even generates $0.85 in net proceeds (since 15% goes to referral).

Factor in your COGS to determine the true minimum viable price.

💡 For Shopify store fee comparison, our Shopify Fee Calculator helps you understand how Shopify's subscription and transaction fees compare to Amazon FBA's structure.

Frequently Asked Questions

What is the average Amazon FBA fee?

FBA fees typically range from $3 to $10+ per unit for standard-size products. They consist of a referral fee (8-20% of sale price, depending on category) and a fulfillment fee ($3.22-$6.10+ for standard sizes, based on weight). For a $29.99 general category item at 12oz, total fees are $8.08 (27% of sale price).

Does Amazon FBA include shipping costs?

FBA fulfillment fees cover picking, packing, and shipping to customers, plus customer service and returns processing. However, they do not cover shipping your inventory to Amazon's fulfillment centers — sellers must arrange and pay for inbound shipping separately, often using Amazon's discounted partnered carrier program.

How do product size tiers affect FBA fees?

Size tiers are the biggest driver of fulfillment fees. A 12oz item costs $3.58 in Small Standard but $4.24 in Large Standard — a $0.66/unit difference. Large Bulky items start at $9.73. Moving an item to a lower tier by reducing packaging dimensions can save several dollars per unit.

What referral fee categories have the lowest rates?

Electronics, Computers, Camera & Photo, Grocery, Health, Beauty, and Baby Products all have 8% referral fees — the lowest standard rate. Jewelry has the highest at 20%, followed by Apparel at 17% and Watches at 16%. Most other categories (General, Books, Sports, Home, etc.) are at 15%.

How do I calculate break-even sale price for FBA?

Break-even = FBA Fulfillment Fee / (1 - Referral Rate). For a $3.58 fulfillment fee with a 15% referral rate: $3.58 / (1 - 0.15) = $4.21. Any price above this covers all Amazon fees. To ensure profitability, price above break-even plus your cost of goods.