How the FBA calculator works
For each unit it adds up what Amazon charges, then takes away your own costs and your ad spend.
- Referral fee. A percentage of the total sales price (item price plus any delivery and gift-wrap charges, excluding tax), set by category, with a per-item minimum of $0.30 in most categories. Some categories charge one rate on the whole price depending on where the price falls; others charge different rates on each part of the price.
- Size tier. From the packaged dimensions and weight: small standard, large standard, small bulky, large bulky or extra-large.
- Shipping weight. Small standard items use their unit weight. Larger tiers use the greater of unit weight and dimensional weight (length x width x height / 139).
- FBA fulfillment fee. From Amazon's rate table for the tier, the shipping weight and the price band (under $10, $10 to $50, over $50; a price of exactly $10 or $50 takes the middle band). Apparel and dangerous goods have their own tables.
- Fuel and logistics surcharge. 3.5% of the fulfillment fee from April 17, 2026, peak fees included.
- Profit. Price minus Amazon's fees, minus your product, inbound and other costs gives profit before ads. Minus your ad cost per unit gives profit after ads.
Formulas
Profit before ads = price − Amazon fees − product cost − shipping to Amazon − other costs
Break-even ACoS = profit before ads ÷ price
Profit after ads = profit before ads − price × TACoS
Break-even ACoS is the most you can spend on ads to make one ad-driven sale without losing money on it. If your campaigns' ACoS is above it, each ad sale loses money. Work it out for each campaign with our ACoS calculator.
Worked example
A kitchen product sells for $25.00. Its packaged size is 12.6 x 6.6 x 5.5 in and it weighs 3.35 lb, so it is large standard. Dimensional weight is 12.6 x 6.6 x 5.5 / 139 = 3.29 lb, so the shipping weight is the unit weight, 3.35 lb. Shipped on October 20, 2026, it pays holiday peak rates:
- Referral fee: 15% of $25.00 = $3.75
- FBA fulfillment fee (peak, 3.35 lb, $10 to $50): $7.67
- Fuel and logistics surcharge: 3.5% of $7.67 = $0.27
- Amazon fees: $11.69
With $6.00 product cost, $1.00 shipping to Amazon and 12% TACoS ($3.00 a unit), profit is $6.31 before ads and $3.31 after ads, a 13.2% margin. Break-even ACoS is 25.2%.
Amazon FBA fees 2026
FBA fulfillment fees for standard (non-apparel, non-dangerous) products in the US, before the 3.5% surcharge. Columns are the item's selling price.
Standard rates (January 15, 2026 to October 14, 2026)
| Size tier | Shipping weight | Price under $10 | $10 to $50 | Over $50 |
|---|---|---|---|---|
| Small standard | <=2 oz | $2.43 | $3.32 | $3.58 |
| Small standard | 2-4 oz | $2.49 | $3.42 | $3.68 |
| Small standard | 4-6 oz | $2.56 | $3.45 | $3.71 |
| Small standard | 6-8 oz | $2.66 | $3.54 | $3.80 |
| Small standard | 8-10 oz | $2.77 | $3.68 | $3.94 |
| Small standard | 10-12 oz | $2.82 | $3.78 | $4.04 |
| Small standard | 12-14 oz | $2.92 | $3.91 | $4.17 |
| Small standard | 14-16 oz | $2.95 | $3.96 | $4.22 |
| Large standard | <=4 oz | $2.91 | $3.73 | $3.99 |
| Large standard | 4-8 oz | $3.13 | $3.95 | $4.21 |
| Large standard | 8-12 oz | $3.38 | $4.20 | $4.46 |
| Large standard | 12-16 oz | $3.78 | $4.60 | $4.86 |
| Large standard | 1-1.25 lb | $4.22 | $5.04 | $5.30 |
| Large standard | 1.25-1.5 lb | $4.60 | $5.42 | $5.68 |
| Large standard | 1.5-1.75 lb | $4.75 | $5.57 | $5.83 |
| Large standard | 1.75-2 lb | $5.00 | $5.82 | $6.08 |
| Large standard | 2-2.25 lb | $5.10 | $5.92 | $6.18 |
| Large standard | 2.25-2.5 lb | $5.28 | $6.10 | $6.36 |
| Large standard | 2.5-2.75 lb | $5.44 | $6.26 | $6.52 |
| Large standard | 2.75-3 lb | $5.85 | $6.67 | $6.93 |
| Large standard | 3 to 20 lb | $6.15 | $6.97 | $7.23 |
| plus $0.08 per 4 oz above the first 3 lb | ||||
| Small bulky | 0 to 50 lb | $6.78 | $7.55 | $7.55 |
| plus $0.38 per lb above the first 1 lb | ||||
| Large bulky | 0 to 50 lb | $8.58 | $9.35 | $9.35 |
| plus $0.38 per lb above the first 1 lb | ||||
| Extra-large 0 to 50 lb | 0 to 50 lb | $25.56 | $26.33 | $26.33 |
| plus $0.38 per lb above the first 1 lb | ||||
| Extra-large 50+ to 70 lb | 50+ to 70 lb | $36.55 | $37.32 | $37.32 |
| plus $0.75 per lb above the first 51 lb | ||||
| Extra-large 70+ to 150 lb | 70+ to 150 lb | $50.55 | $51.32 | $51.32 |
| plus $0.75 per lb above the first 71 lb | ||||
| Extra-large 150+ lb | 150+ lb | $194.18 | $194.95 | $194.95 |
| plus $0.19 per lb above the first 151 lb | ||||
Holiday peak rates (October 15, 2026 to January 14, 2027)
Peak rates apply by ship date: an order placed before October 15 that ships on or after it pays the peak fee.
| Size tier | Shipping weight | Price under $10 | $10 to $50 | Over $50 |
|---|---|---|---|---|
| Small standard | <=2 oz | $2.62 | $3.51 | $3.77 |
| Small standard | 2-4 oz | $2.68 | $3.61 | $3.87 |
| Small standard | 4-6 oz | $2.76 | $3.65 | $3.91 |
| Small standard | 6-8 oz | $2.86 | $3.74 | $4.00 |
| Small standard | 8-10 oz | $2.98 | $3.89 | $4.15 |
| Small standard | 10-12 oz | $3.03 | $3.99 | $4.25 |
| Small standard | 12-14 oz | $3.14 | $4.13 | $4.39 |
| Small standard | 14-16 oz | $3.17 | $4.18 | $4.44 |
| Large standard | <=4 oz | $3.15 | $3.97 | $4.23 |
| Large standard | 4-8 oz | $3.39 | $4.21 | $4.47 |
| Large standard | 8-12 oz | $3.66 | $4.48 | $4.74 |
| Large standard | 12-16 oz | $4.07 | $4.89 | $5.15 |
| Large standard | 1-1.25 lb | $4.52 | $5.34 | $5.60 |
| Large standard | 1.25-1.5 lb | $4.91 | $5.73 | $5.99 |
| Large standard | 1.5-1.75 lb | $5.07 | $5.89 | $6.15 |
| Large standard | 1.75-2 lb | $5.33 | $6.15 | $6.41 |
| Large standard | 2-2.25 lb | $5.47 | $6.29 | $6.55 |
| Large standard | 2.25-2.5 lb | $5.67 | $6.49 | $6.75 |
| Large standard | 2.5-2.75 lb | $5.84 | $6.66 | $6.92 |
| Large standard | 2.75-3 lb | $6.26 | $7.08 | $7.34 |
| Large standard | 3 to 20 lb | $6.69 | $7.51 | $7.77 |
| plus $0.08 per 4 oz above the first 3 lb | ||||
| Small bulky | 0 to 50 lb | $7.82 | $8.59 | $8.59 |
| plus $0.38 per lb above the first 1 lb | ||||
| Large bulky | 0 to 50 lb | $9.62 | $10.39 | $10.39 |
| plus $0.38 per lb above the first 1 lb | ||||
| Extra-large 0 to 50 lb | 0 to 50 lb | $28.29 | $29.06 | $29.06 |
| plus $0.38 per lb above the first 1 lb | ||||
| Extra-large 50+ to 70 lb | 50+ to 70 lb | $39.36 | $40.13 | $40.13 |
| plus $0.75 per lb above the first 51 lb | ||||
| Extra-large 70+ to 150 lb | 70+ to 150 lb | $54.97 | $55.74 | $55.74 |
| plus $0.75 per lb above the first 71 lb | ||||
| Extra-large 150+ lb | 150+ lb | $202.69 | $203.46 | $203.46 |
| plus $0.19 per lb above the first 151 lb | ||||
Monthly storage fees
Charged per cubic foot of packaged volume per month (length x width x height in inches ÷ 1,728). Standard-size stock held in October to December pays about three times its January to September rate, oversize about two and a half times. Established sellers who hold more than 22 weeks of stock may also pay a storage utilization surcharge, not shown here.
| Products | Months | Standard-size | Oversize (bulky and extra-large) |
|---|---|---|---|
| Most products | January to September | $0.78 | $0.56 |
| Most products | October to December | $2.40 | $1.40 |
| Dangerous goods | January to September | $0.99 | $0.78 |
| Dangerous goods | October to December | $3.63 | $2.43 |
Referral fees by category
The referral fee is the greater of the percentage and the per-item minimum.
| Category | Referral fee | Minimum per item |
|---|---|---|
| Amazon Device Accessories | 45% | $0.30 |
| Automotive and Powersports | 12% | $0.30 |
| Baby Products | 8% up to $10.00; 15% above $10.00 (whole price at one rate) | $0.30 |
| Backpacks, Handbags, and Luggage | 15% | $0.30 |
| Base Equipment Power Tools | 12% | $0.30 |
| Beauty, Health and Personal Care | 8% up to $10.00; 15% above $10.00 (whole price at one rate) | $0.30 |
| Business, Industrial, and Scientific Supplies | 12% | $0.30 |
| Clothing and Accessories | 5% up to $15.00; 10% above $15.00 up to $20.00; 17% above $20.00 (whole price at one rate) | $0.30 |
| Compact Appliances | 15% of the part up to $300.00; 8% of the part above $300.00 | $0.30 |
| Computers | 8% | $0.30 |
| Consumer Electronics | 8% | $0.30 |
| Electronics Accessories | 15% of the part up to $100.00; 8% of the part above $100.00 | $0.30 |
| Everything Else | 15% | $0.30 |
| Eyewear | 15% | $0.30 |
| Fine Art | 20% of the part up to $100.00; 15% of the part up to $1000.00; 10% of the part up to $5000.00; 5% of the part above $5000.00 | none |
| Footwear | 15% | $0.30 |
| Full-Size Appliances | 8% | $0.30 |
| Furniture | 15% of the part up to $200.00; 10% of the part above $200.00 | $0.30 |
| Gift Cards | 20% | none |
| Grocery and Gourmet | 8% up to $15.00; 15% above $15.00 (whole price at one rate) | none |
| Home and Kitchen | 15% | $0.30 |
| Jewelry | 20% of the part up to $250.00; 5% of the part above $250.00 | $0.30 |
| Lawn and Garden | 15% | $0.30 |
| Lawn Mowers and Snow Throwers | 15% up to $500.00; 8% above $500.00 (whole price at one rate) | $0.30 |
| Mattresses | 15% | $0.30 |
| Media - Books, DVD, Music, Software, Video | 15% | none |
| Merchant Fulfilled Services | 20% | $0.30 |
| Musical Instruments and AV Production | 15% | $0.30 |
| Office Products | 15% | $0.30 |
| Pet Products | 15% | $0.30 |
| Sports and Outdoors | 15% | $0.30 |
| Tires | 10% | $0.30 |
| Tools and Home Improvement | 15% | $0.30 |
| Toys and Games | 15% | $0.30 |
| Video Game Consoles | 8% | none |
| Video Games and Gaming Accessories | 15% | none |
| Watches | 16% of the part up to $1500.00; 3% of the part above $1500.00 | $0.30 |
Frequently asked questions
How much does Amazon FBA charge per item?
Two fees apply to every FBA sale: a referral fee, usually 8% to 15% of the total sales price with a $0.30 minimum in most categories, and a fulfillment fee set by size tier, shipping weight and price. In 2026 a fuel and logistics surcharge of 3.5% is added to the fulfillment fee. A 1 lb large standard item priced between $10 and $50 pays $4.60 in fulfillment fees at standard rates before the surcharge.
When do Amazon's 2026 holiday peak fees apply?
From October 15, 2026 to January 14, 2027, decided by the date the order ships, not the date it was placed. The calculator picks the season from the ship date you enter.
What is the FBA fuel and logistics surcharge?
Since April 17, 2026 Amazon adds 3.5% of the FBA fulfillment fee in the US and Canada, including on peak fees. Amazon has not given an end date. The calculator shows it as its own line.
How is dimensional weight calculated for FBA?
Length x width x height in inches, divided by 139. For bulky and extra-large items Amazon uses a minimum of 2 inches for width and height. Large standard and bigger items are charged on the greater of unit weight and dimensional weight; small standard items use unit weight only.
What is a good profit margin on Amazon FBA?
It depends on how much you spend on ads. The useful number is the margin after advertising: profit after Amazon fees, product cost and ad cost, divided by the selling price. Your break-even ACoS tells you the most you can spend on ads for one sale before it loses money.
Does this calculator include storage fees?
Yes, if you enter how many months a unit sits in Amazon's warehouse before it sells. It applies Amazon's 2026 monthly rate per cubic foot month by month, so October to December cost more. It leaves out the storage utilization surcharge and the low-inventory-level, inbound placement, aged inventory and returns processing fees, which depend on your whole inventory; add your per-unit estimate under Other costs.