Amazon FBA Calculator - Free 2026 Tool
Free Amazon FBA calculator with the current 2026 US fee schedule built in. Look up any ASIN to auto-fill price, dimensions, sales and competition, then tweak the numbers live.
Look up an Amazon product
We'll auto-fill price, fees, dimensions, sales and competition. You can tweak everything after.
Inbound placement + low-inventory + aged-inventory surcharges
Net profit per unit
$11.62
Sell at $15.99 or higher to break even.
Keep ACoS under 38.8% to stay profitable.
FBA profit sensitivity: which lever moves your margin most?
Each card shows how your net profit per unit shifts if you change one variable.
+10% sale price
+$2.49
−10% COGS
+$0.80
−1pt return rate
+$0.30
+5pt TACoS
-$1.50
Switch to FBM ($4)
+$1.27
Run this across your whole catalog
You just priced one unit by hand. Nova does it on every SKU with real fees, PPC, refunds and storage from Seller Central. 14-day free trial, no card.
This result is an estimate for one unit at the rates you entered. For real profit after every fee Amazon actually charged you, across every SKU and marketplace, see Amazon P&L analytics.
Think of it as the Amazon Seller Central calculator that Seller Central itself does not give you: the same per-unit fee math, plus break-even and ACoS. For real settlement-level fees across your full catalog, Nova pulls actual fees from your Seller Central account.
Weighing a Vendor Central purchase order against selling the same unit yourself? The 1P vs 3P margin calculator runs this same fee engine on the 3P side and puts a negotiated wholesale price next to it.
See Nova plansHow to use the FBA calculator (6 steps)
From sale price to net profit per unit in under two minutes.
- 01
Enter your sale price and category
Type your Amazon list price and pick the product category. Toggle VAT or a promotional discount if either applies.
- 02
Add COGS, inbound shipping, and duties
Enter your manufacturing cost, inbound freight to Amazon, and any import duties or tariffs per unit.
- 03
Pick FBA or FBM and provide dimensions
For FBA, switch on dimensions to get an exact 2026 fulfillment fee. For FBM, enter your per-unit shipping cost.
- 04
Toggle 2026 fee scenarios
Switch on the inbound placement fee, low-inventory-level fee, and aged-inventory surcharge depending on your current operations.
- 05
Read break-even and ACoS ceiling
The summary shows net profit, margin, and monthly P&L. The break-even card surfaces the price floor and ACoS ceiling.
- 06
Compare scenarios
Adjust any input and watch profit, margin, and break-even update live. Switch FBA/FBM to compare the two on the same SKU.
Every 2026 Amazon FBA fee, explained
The calculator above covers every fee on this list. Values are sourced from Seller Central Help and kept current with the 2026 US schedule.
| Fee | 2026 rate | When it applies |
|---|---|---|
| Referral fee | 8% to 17% of sale price (category-dependent) | Every order, FBA or FBM. Min $0.30. |
| FBA fulfillment fee | $3.06+ (Small Standard) to $200+ (Large Bulky) | Every FBA unit shipped. Based on size tier and weight. |
| Monthly storage fee | $0.78/cu ft Jan-Sep · $2.40/cu ft Oct-Dec (Standard) | Per cubic foot of inventory held in Amazon FCs each month. |
| Inbound placement service fee | $0.21 to $1.58/unit · Amazon-optimized is free | When you send inventory to fewer FCs than Amazon recommends. |
| Low-inventory-level (LIL) fee | $0.32 to $1.10/unit | When historical weeks-of-cover stays under four weeks. |
| Aged-inventory surcharge | $0.50 to $6.90+/cu ft | Inventory aged 181+ days. |
| Returns processing fee | ≈ one fulfillment fee on returned units (select categories) | High-return categories like apparel, shoes and watches. |
| Media closing fee | $1.80/unit flat | Books, music, video, DVD and software. |
Work out a single category rate in the referral fee calculator below, or let profit & loss analytics track every fee against your real Seller Central settlements automatically.
FBA vs FBM: which fulfillment wins for your product?
FBA hands the operation to Amazon and charges flat per-unit fees. FBM keeps you in control of packing and shipping. The right answer depends on weight, margin and sales predictability.
| Factor | FBA | FBM |
|---|---|---|
| Per-unit cost | Flat 2026 fulfillment fee + storage | Your own shipping rate, no storage fee |
| Prime eligibility | Automatic | Only via Seller Fulfilled Prime |
| Best for | Light, fast-moving SKUs | Heavy, slow-moving, oversize items |
| 2026 fee exposure | Placement, LIL and aged surcharge apply | None of the new FBA-only fees apply |
Put your own numbers in the FBA vs FBM calculator below.
Worked example: $24.99 home-goods SKU
Here is how the math runs end to end on a typical Large Standard FBA unit.
Free Amazon referral fee calculator
Referral fee by category, at your actual sale price
Pick your category and price. Tiered categories such as clothing, jewelry and furniture change rate at a price threshold, which is where most spreadsheet estimates go wrong. No signup.
Referral fee per unit
$4.50
Rate applied
15%
Price after referral fee
$25.49
Referral fees per month
$1,349.55
Category
15%
Referral fee is charged on the total sale price including shipping and gift wrap, before any promotion.
Referral fees you were actually charged, per SKU
Nova reads referral fees straight from your Settlement Reports, so promotions, price changes and category re-classifications show up in your P&L instead of a spreadsheet estimate. 14-day free trial, no card.
Free Amazon storage fee calculator
Calculate your FBA monthly storage fee, peak season included
Enter your box dimensions and unit count. Rates are prefilled with Amazon's published US monthly storage rates and aged-inventory surcharge tiers. Everything runs in your browser, no signup.
Storage cost this month
$216.67
Cubic feet per unit
0.556
Total cubic feet
277.8
Base monthly storage
$216.67
Aged inventory surcharge
$0.00
Cost per unit
$0.43
Rate applied
$0.78/cu ft
Amazon bills on average daily volume, so a month where stock arrives mid-cycle costs less than this estimate. Peak season roughly triples the standard-size rate.
See the storage fee you actually paid, per SKU
Nova reads the real storage and aged-inventory charges from your Settlement Reports and puts them in your P&L next to the margin they eat. 14-day free trial, no card.
FBA vs FBM calculator: compare the two on the same unit
Enter the product once and see the FBA fulfilment fee against your own pick, pack and postage cost, so the fulfilment decision rests on the per-unit number rather than a rule of thumb.
FBA vs FBM Cost Calculator
Compare profitability for your product
Enter your email to unlock the full calculator and compare unlimited products.
Free FBA profit calculator
Calculate profit margin, CM1, CM2 and CM3 per unit
Profit is the dollar figure, margin is the percentage. This works both out, and steps through the three contribution margins so you can see which layer the money leaves at.
Referral fee, FBA fulfilment fee, storage allocation.
Refunded revenue plus refund admin, spread over units sold.
Net profit margin
30.0%
CM1 (after COGS and fees)
$14.49
CM2 (after ad spend)
$11.49
CM3 (after refunds)
$10.49
Net profit per unit
$10.49
Margin is CM3 divided by sale price. Profit is the dollar figure. A SKU can hold a healthy dollar profit and still carry a margin too thin to scale.
Margin on every SKU, from your real settlement data
Nova reads the fees Amazon actually charged you, adds your COGS and ad spend, and reports margin per SKU every day. 14-day free trial, no card.
Product economics
Revenue - COGS - Amazon variable fees
Tells you whether the SKU itself is viable. If CM1 is negative, no amount of optimisation saves it: you need a price rise, a cost cut, or to discontinue.
Marketing economics
CM1 - ad spend
Tells you whether you can afford to acquire customers. A SKU with healthy CM1 but negative CM2 is buying growth at a loss.
Operating economics
CM2 - refunds - refund admin - storage
The real bottom line, after the warehouse, the returns desk and the storage clock have taken their cut.
Free break-even calculator
Calculate your break-even price and break-even units
Enter your costs to see the price that covers them and how many units clear your fixed costs.
Software, VA, storage, anything not per unit.
Break-even units per month
175
Break-even price
$23.50
Contribution per unit
$11.49
Contribution margin
32.8%
Revenue to break even
$6123
Anything above this unit count is profit. Below it, fixed costs eat the contribution.
Break-even per SKU, kept current automatically
Nova recalculates break-even whenever Amazon changes a fee or your COGS moves. 14-day free trial, no card.
Free ROI calculator
Calculate ROI and payback on a single unit
Enter what the unit costs you to land and what it returns after Amazon takes its cut.
Referral fee, FBA fulfilment fee, storage.
ROI per unit
128%
Net profit per unit
$11.49
Net margin
32.8%
Cash invested
$4500
Profit on the order
$5745
ROI here is profit divided by cash tied up in inventory, so it answers whether the next purchase order is worth funding.
ROI on every SKU, updated daily
Nova calculates per-SKU ROI from live Seller Central data: fees, COGS, ad spend and refunds included. 14-day free trial, no card.
Free ACoS calculator
Calculate your ACoS and your break-even ACoS
ACoS tells you what share of ad revenue went to ads. Break-even ACoS tells you how high you can push before the sale stops making money.
Sale price minus COGS, Amazon fees, shipping and refunds.
Your ACoS
24.0%
Break-even ACoS
27.2%
ROAS
4.17x
Headroom
+3.2 pts
Profit on ad sales
$158
You are under break-even ACoS, so these ad sales are still profitable.
Break-even ACoS on every SKU, calculated for you
Nova pulls real fees, COGS, ad spend and refunds from Seller Central, then shows break-even ACoS per product. 14-day free trial, no card.
Free TACoS calculator
Calculate TACoS and see how much of total revenue is organic
TACoS measures ad spend against total sales, not just attributed sales, so it shows whether ads are building organic demand or replacing it.
Your TACoS
6.0%
ACoS
24.0%
Organic share of sales
75%
Margin after ads
21.0%
Ad spend per $100 sold
$6.00
Falling TACoS with flat spend means organic sales are growing. Rising TACoS means ads are carrying more of the revenue.
TACoS per product, brand and account
Nova connects ad spend to total revenue and real margin across 23 marketplaces. 14-day free trial, no card.
Amazon fee calculator, seller fee calculator or FBA profit calculator?
Three different questions, all answered on this page. Jump to the one you came for.
Amazon fee calculator
What Amazon charges on one sale: the referral fee set by category, the FBA fulfilment fee set by size tier and shipping weight, and monthly storage. Work each one out in the referral fee, fulfilment fee and storage fee sections.
Amazon seller fee calculator
The same per-sale fees plus the selling plan itself: $39.99 a month on the Professional plan, or $0.99 per item sold on the Individual plan. The plan fee sits outside the per-unit maths, so add it to your fixed monthly costs rather than to a single unit.
FBA profit calculator
What is left after the fees, your landed cost, ad spend and refunds. The profit and margin section reports the dollar profit and the margin percentage side by side, with CM1, CM2 and CM3 in between.
The rate cards behind these numbers
Every rate on this page comes from Amazon's own published US schedules, read on September 21, 2026. Amazon changes them, so check the source before you commit to a price.
- Selling on Amazon fee schedule (referral fees by category, minimum referral fee, closing fees)
- FBA fulfilment fee schedule (per-unit fees by size tier and shipping weight)
- Monthly inventory storage fees (per cubic foot, standard and oversize)
- Inbound placement service fee (per unit, by shipment split)
Frequently asked questions
Looking for a different angle? Try the profit and margin calculator, storage fee calculator, ROI calculator, break-even calculator or the Amazon sales estimator.
Related solutions
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Related Insights
Explore in-depth guides to get the most from this feature
2026 Amazon FBA fee changes
Every fee that moved in the January 2026 schedule, with examples.
How to calculate FBA break-even point
Find the exact price floor where your unit economics work.
How to reduce Amazon FBA fees
Practical levers to cut placement, storage, and aged-inventory fees.
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