Work out your real profit per unit on Amazon.com or Amazon.in — after referral, fulfilment, storage, ads, returns and (for India) GST on fees. Enter your exact fees from Amazon's own calculator and see margin, ROI, break-even price and break-even ACoS.
Use your exact fees from Amazon
Fee fields below start with example values only. Amazon's fees vary by category, price band, size, weight and marketplace, and they change. Look up your product in Amazon's FBA Revenue Calculator (US) (or see Amazon US selling fees & pricing) and copy the referral %, fulfilment fee and other fees into this calculator.
Profit per unit
$8.84
Net margin
29.5%
ROI
124.6%
on landed + inbound cost
Break-even price
$16.79
fees held constant
Break-even ACoS
44.5%
max ad spend % before loss
Monthly profit (300 units)
$2,652.99
| Selling price | $29.99 |
|---|---|
| Referral fee | −$4.50 |
| Closing, fulfilment & storage | −$4.15 |
| Amazon fees total | −$8.65 |
| Product + inbound | −$7.10 |
| Advertising | −$4.50 |
| Returns allowance | −$0.90 |
| Other costs | −$0.00 |
| Profit | $8.84 |
Estimates only, based on the numbers you enter. Break-even price assumes your fixed fees stay the same — in practice referral and closing fees can change with price band.
Profit / unit
$8.84
Margin
29.5%
Monthly profit
$2,652.99
same unit volume
Change vs now
$0.00
per unit
Uses the same fees, so a lower price may cross into a different referral or closing-fee band. Re-check in Amazon's calculator before repricing. Volume usually changes with price too — adjust units to model that.
Official calculators & further reading
This calculator runs entirely in your browser. Nothing you type is sent or stored.
A stronger title, bullets and description can lift conversion, which spreads your ad spend over more sales and lowers your effective ACoS. zonfy's Listing Generator writes the whole listing from one product link, ready for Seller Central. Paid plans from ₹749/month.
How to use it
Choose Amazon.com (US $) or Amazon.in (India ₹), then enter your selling price, landed product cost and inbound shipping per unit.
The fee fields start with example values. Look up your product in Amazon's Revenue Calculator and replace the referral %, closing or per-item fee, fulfilment fee and storage with the real numbers.
See Amazon fees total, profit per unit, net margin, ROI, break-even price, break-even ACoS and monthly profit. Drag the what-if slider to test other prices.
Your Amazon profit per unit is the selling price minus everything it costs to get that sale: the landed cost of the product, shipping it into Amazon, Amazon's own fees (a referral fee charged as a percentage of price, plus fixed fees such as closing or per-item fees, fulfilment and storage), advertising, returns and any other per-unit costs. Margin is that profit as a share of the price; ROI is profit compared with the money you put into stock. Break-even ACoS tells you how much of the price you can spend on ads before a sale stops making money.
Amazon's fees are not one flat rate. Referral fees depend on category and often on price band, fulfilment fees depend on size tier, weight and channel, and both are revised from time to time. That is why this calculator does not pretend to know your fees: it starts with clearly labelled example values and asks you to copy the exact figures from Amazon's official Revenue Calculator for your product. A profit estimate is only as good as the fees you put into it.
Selling on Amazon.in adds one more line: Amazon charges 18% GST on its fees — referral, closing, fulfilment and storage. Turn on the GST toggle to include it. If you are GST-registered you may be able to claim it back as input tax credit, and the GST you owe on the sale itself depends on your registration and product, so check both with your CA. Everything here runs in your browser; nothing is sent or stored.
No. This is an independent calculator by zonfy. Amazon's official tool is the Revenue Calculator — for the US, the public version is at sellercentral.amazon.com/revcalpublic, and for India it is linked from sell.amazon.in/fees-and-pricing. Use Amazon's tool to get your exact fees, then use this calculator to add your product cost, ads, returns and GST and see your full profit picture.
Open Amazon's Revenue Calculator, search for your product (or a similar one by ASIN) and enter its price. It shows the referral fee and fulfilment fee based on Amazon's current rates for that item's size and weight. Copy those numbers into the fee fields here.
Because Amazon's fees vary by category, price band, size, weight, fulfilment channel and marketplace, and they change. A built-in fee table that is out of date or wrong for your product would give you a confident but misleading answer. Entering the exact fees from Amazon keeps the result honest.
It is the advertising cost of sale at which a unit makes zero profit — your profit before ad costs, divided by the selling price. If your actual ACoS (or TACoS) is below this number, ads are adding profitable sales; above it, each ad-driven sale loses money.
Amazon.in charges 18% GST on its seller fees, so the toggle is on by default for India. Registered sellers may be able to claim this as input tax credit, which effectively reduces the cost. GST on the sale price itself depends on your registration and product category — check with your CA.
No. The calculator runs entirely in your browser. Nothing you type is uploaded or saved.
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