Amazon FBA Calculator (US): Fees, Profit & ROI

About the Amazon FBA Calculator (US): Fees, Profit & ROI

This calculator works out what a sale on amazon.com earns when Amazon stores and ships it (Fulfillment by Amazon), before you buy stock or list the product: the referral fee for its fee category, the size tier and the shipping weight from its packaged dimensions and weight (dimensional weight included), the FBA fulfilment fee for that tier and price band with the fuel and logistics surcharge, monthly storage, an optional inbound placement fee, the closing fee on media and the low-inventory-level fee. Add what the product costs you, shipping to Amazon, prep and advertising, and it gives the profit, margin, ROI, the break-even price and the most you can pay a supplier for the ROI you want — beside what the same sale leaves when you ship orders yourself.

The rates are transcribed from Amazon's own fee pages — the fee schedule, FBA fulfilment fees and product size tiers — and carried as a numbered preset; every rate the result uses can be replaced with your own. Check a finished listing against Amazon's own Revenue Calculator.

Without a pass, the free preview shows the Amazon fees per unit in full, with the first rows of each table and the first step of the working; the profit, margin, ROI, break-even price, the most to pay a supplier, the comparison with fulfilling it yourself, the summary copy and the CSV need a Premium pass, or unlocking this one result.

Size tiers and the weight Amazon charges

Amazon sorts each packaged unit by its longest, median and shortest side, its weight and its length plus girth (girth = 2 × (median + shortest side)):

• Small standard: up to 16 oz and 15 × 12 × 0.75 inches.
• Large standard: up to 20 lb and 18 × 14 × 8 inches.
• Small Bulky: up to 50 lb and 37 × 28 × 20 inches, length plus girth up to 130 inches.
• Large Bulky: up to 50 lb and 59 × 33 × 33 inches, length plus girth up to 130 inches.
• Extra-large: anything bigger or heavier, in four weight tiers (0 to 50, 50+ to 70, 70+ to 150 and over 150 lb). An Extra-large unit up to 150 lb that is over 96 inches long or 130 inches in length plus girth is Overmax and pays a handling fee on top.

Dimensional weight is length × width × height in inches ÷ 139; for Small Bulky, Large Bulky and Extra-large units the width and height count as at least 2 inches. The fee is charged on the greater of the unit weight and the dimensional weight, except for Small standard and Extra-large 150+ lb units, which use the unit weight. Sources: product size tiers, dimensional weight.

Fulfilment fees: price bands, seasons and the surcharge

Fulfilment fees depend on the size tier, the shipping weight and the item price: under $10 (Amazon's low-price rates), $10 to $50 (both ends included) and over $50. Apparel and dangerous goods have their own rate cards. From mid-October to mid-January Amazon charges holiday peak rates for every unit that leaves its warehouse in that time, whenever it was ordered. A fuel and logistics surcharge of 3.5% is added to the fulfilment fee.

The calculator also adds the low-inventory-level fee when you say the product's days of supply are under 28, the Ships in Product Packaging (SIPP) discount for certified standard-size units, the packaging fee for Bulky units that are not SIPP-enrolled and the Overmax handling fee ($17, $21 or $25 by tier). Sources: FBA fulfilment fees, low-inventory-level fee, SIPP, Overmax.

Referral fees and the closing fee

The referral fee is a percentage of the total sales price — the item price plus any shipping and gift wrap the buyer pays, without tax — or a per-item minimum, usually $0.30, whichever is greater. Most categories pay 15%. Some take one rate on the whole price by its size (Beauty and Baby: 8% at $10.00 or less, 15% above; Grocery: 8% at $15.00 or less; Clothing: 5%, 10% or 17%), and some charge a lower rate on the part above a limit (Furniture: 15% up to $200, 10% above; Jewelry: 20% up to $250, 5% above; Watches: 16% up to $1,500, 3% above). Books, music, video, DVD, software and video games also pay a $1.80 closing fee. Source: Selling on Amazon fee schedule.

Storage, inbound placement and your plan

Monthly storage is charged on the unit's cubic feet (length × width × height ÷ 1,728): $0.78 a cubic foot from January to September and $2.40 from October to December for standard-size units, $0.56 and $1.40 for Bulky and Extra-large, with higher rates for dangerous goods. Sellers whose stock covers more than 22 weeks of sales pay a storage utilisation surcharge on inventory older than 30 days. The inbound placement fee applies when you send a shipment to fewer locations than Amazon wants: Amazon publishes a range per size and weight and charges within it by location; Amazon-optimized splits (five or more identical boxes per item) pay none. The Professional plan costs $39.99 a month; the Individual plan $0.99 per item sold. Sources: storage fees, inbound placement.

Profit, ROI and the most you can pay a supplier

• Profit = price − Amazon fees − product cost − shipping to Amazon − prep − advertising − other costs.
• Margin = profit ÷ price. ROI = profit ÷ (product cost + shipping to Amazon + prep): what each dollar you put into stock earns.
• Most you can pay for a target ROI = (price − Amazon fees − advertising − other costs) ÷ (1 + ROI) − shipping to Amazon − prep, rounded down to the cent.
• The break-even price and the price for your ROI are found to the cent, checking each price with the rounded fees and both sides of every price where a fee changes, so a price that drops into the under-$10 band is not missed.

Limitations

• For amazon.com (the US store) only: other Amazon stores have their own fees.
• The rates are preset v1, transcribed from Amazon’s pages; Amazon changes its fees from time to time, so compare the preset with the linked pages and replace any rate that has changed.
• Amazon measures products itself, and its measurements decide the fees. Two of Amazon’s pages differ on whether Large standard items get the 2-inch minimum for dimensional weight: the calculator follows the size tier pages and says when the other reading would change the fee.
• Not included: returns processing, removal and disposal fees, the aged inventory surcharge, coupon, deal and Vine fees, the refund administration fee, sales tax and Multi-Channel Fulfillment.
• The inbound placement fee is a range that depends on where Amazon sends the shipment; the calculator uses the top of the range unless you enter your rate.
• Income tax on your profit is not worked out. MySmartCoPilot is not affiliated with Amazon; check fees against your seller account.

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