Ssellmath

Amazon FBA Profit Calculator

Free Amazon FBA profit calculator with the 2026 US fee tables: referral fee by category, FBA fulfillment fee by size tier and weight, monthly storage, the 3.5% surcharge, PPC and inbound cost. See net profit, margin, ROI and break-even price — no login, no ASIN required.

Product
Fulfillment
Storage & plan

How it is calculated

Net profit = selling price − referral fee − FBA fulfillment fee (+3.5% surcharge) − monthly storage × months − product cost − inbound shipping − PPC − plan fee per unit. The referral fee is a percentage of the selling price (Amazon applies it to price + shipping charged, which for FBA is usually zero), with a $0.30 minimum. Categories such as clothing use tiers on the portion of the price above a threshold; a few (baby, beauty, grocery) switch rate for the whole price at $10 or $15.

The FBA fee comes from Amazon's 2026 US rate card: the size tier, the shipping weight (rounded up to the next band) and the price band. Items under $10 get the lower Low-Price FBA rate; items over $50 pay about $0.26 more than the $10–50 band. Large standard items above 3 lb add $0.08 per 4 oz; bulky and extra-large tiers add a per-pound charge above the first pound. Monthly storage is cubic feet × the seasonal rate; if you enter dimensions the cubic feet and dimensional weight (L × W × H ÷ 139) are computed for you.

Not included: low-inventory-level fee, inbound placement service fee, removal and disposal fees, returns processing fees for high-return products, aged-inventory surcharges, sales tax, and refunds. They depend on your inventory behaviour rather than on a single unit, so add an allowance to the product cost if they apply to you.

Key points

Worked example

Large standard item, 1.2 lb shipping weight, Home & Kitchen (15%), $10–50 band, product cost $8, inbound $1.20, no PPC, professional plan spread over 300 units/month.

Selling priceReferral 15%FBA fee (+3.5%)Storage (1 mo)Net profitMargin
$19.99$3.00$5.22$0.06$2.3811.9%
$24.99$3.75$5.22$0.06$6.6326.5%
$29.99$4.50$5.22$0.06$10.8836.3%
$34.99$5.25$5.22$0.06$15.1343.2%

The table uses default assumptions. Enter your own numbers in the calculator above.

Rates as of2026-09-20Last automated check2026-10-01Marketplace fee pages and related news are checked automatically every day; changes are reflected here.

Wrong result or a rate that changed? Report a bug in this tool · Report a rate change

Results are estimates for reference only. Actual fees depend on each marketplace's current policies, promotions, your account status and product attributes. Verify in your seller account before making decisions.

Frequently asked questions

Which fees does this calculator include?

Referral fee (by category, with price tiers where Amazon uses them), FBA fulfillment fee (2026 US non-peak tables for standard, bulky and extra-large tiers, plus the apparel table and the peak-season table), the 3.5% fuel and logistics surcharge, monthly storage, the media closing fee, and the selling plan fee. You add your own product cost, inbound shipping and PPC spend.

How is the size tier decided?

Amazon uses the packaged dimensions and weight. Small standard: up to 16 oz and 15 × 12 × 0.75 in. Large standard: up to 20 lb and 18 × 14 × 8 in. Large bulky: up to 50 lb and 59 × 33 × 33 in. Anything heavier or larger is extra-large. Pick the tier that matches your packaged product; the calculator does not measure it for you.

What is shipping weight?

For small standard items it is the packaged unit weight. For larger tiers Amazon uses the greater of unit weight and dimensional weight (length × width × height in inches ÷ 139, in lb). Enter dimensions and the calculator computes dimensional weight and cubic feet for storage.

Are the numbers official?

Referral rates come from Amazon's public pricing page and fee schedule; FBA fulfillment and storage rates were checked against Amazon Seller Central's public help pages on 2026-09-20. Rates change — Amazon typically announces updates in December for mid-January. The pages are re-checked automatically every day and the 'rates as of' date below is updated when we change anything.

Does it work for Amazon UK, Canada or Germany?

Not yet. This version covers Amazon.com (US) in USD. Other marketplaces have different referral rates, FBA tables and VAT rules.

Is my data stored?

No. Every calculation runs in your browser; nothing is sent to a server. Inputs are kept in your browser's local storage so they are still there when you come back.

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