Amazon FBA Calculator
Calculate your Amazon FBA fees, understand referral and fulfillment costs, and determine your true profit margins before sending inventory to Amazon.
Product Details
FBA Details
Fee Breakdown
Referral Fee (15%)$4.50
FBA Fulfillment Fee$3.40
Monthly Storage Fee$0.09
Total Amazon Fees$7.99
Cost Summary
Sale Price$29.99
Product Cost-$8.00
Shipping to Amazon-$0.50
Amazon Fees-$7.99
Profit Analysis
Net Profit$13.50
Profit Margin45.0%
ROI168.8%
Understanding Amazon FBA Fees
Types of FBA Fees
Amazon charges several types of fees when you use Fulfillment by Amazon. Understanding these fees is crucial for pricing your products profitably.
Main Fee Types
- • Referral Fee: Percentage of sale (8-20%)
- • FBA Fulfillment: Pick, pack, and ship costs
- • Monthly Storage: Based on cubic feet used
- • Long-term Storage: For inventory over 365 days
- • Removal/Disposal: To get inventory back
How Referral Fees Work
Amazon charges a referral fee as a percentage of the total sale price (including shipping). Rates vary significantly by category.
- • Most categories: 15%
- • Electronics/Computers: 8%
- • Clothing & Accessories: 17%
- • Jewelry: 20%
- • Watches: 16%
- • Minimum fee: $0.30 per item
FBA Size Tiers Explained
Standard-Size Items
- • Small Standard: Up to 15" x 12" x 0.75", under 1 lb
- • Large Standard: Up to 18" x 14" x 8", under 20 lb
- • Lower fulfillment fees than oversize
- • Lower storage fees
- • Faster handling times
Oversize Items
- • Small Oversize: Over 18" or 20 lb, up to 70 lb
- • Medium Oversize: Over 60" or 70 lb, up to 150 lb
- • Large Oversize: Over 130" girth, up to 150 lb
- • Special Oversize: Over 150 lb
- • Significantly higher fees apply
FBA Fee Examples
Small Item ($20)
- Sale Price: $20.00
- Referral (15%): -$3.00
- FBA Fee (4 oz): -$3.22
- Storage: -$0.09
- Net: $13.69
Medium Item ($50)
- Sale Price: $50.00
- Referral (15%): -$7.50
- FBA Fee (1 lb): -$4.24
- Storage: -$0.17
- Net: $38.09
Large Item ($100)
- Sale Price: $100.00
- Referral (15%): -$15.00
- FBA Fee (5 lb): -$6.59
- Storage: -$0.44
- Net: $77.97
Tips for FBA Sellers
Maximize Profits
- • Calculate all fees before sourcing products
- • Target 30%+ profit margin after all costs
- • Consider FBM for slow-moving inventory
- • Monitor storage fees during peak season
- • Use Amazon's revenue calculator tool
- • Optimize packaging to reduce size tier
Avoid Common Mistakes
- • Don't forget shipping to Amazon costs
- • Account for returns (8-15% average)
- • Watch inventory age to avoid long-term fees
- • Don't underestimate storage during Q4
- • Include prep and labeling costs
- • Factor in product returns and damages
FBA vs FBM Comparison
FBA (Fulfillment by Amazon)
- • Prime badge increases sales
- • Amazon handles customer service
- • Higher fees but less work
- • Best for fast-moving products
- • Multi-channel fulfillment available
FBM (Fulfilled by Merchant)
- • Lower fees, more control
- • You handle shipping & returns
- • Better for large/heavy items
- • Seller Fulfilled Prime possible
- • Good for slow-moving inventory