Amazon Margin Calculator
Find out what you really keep from every Amazon sale. Enter your selling price, product cost, fulfillment and referral fees to see your profit per unit, margin and ROI in seconds. Free, no sign-up.
Calculate your Amazon profit
All amounts in US dollars, per unit.
How the calculator works
Three numbers decide whether an Amazon product is worth selling: what you sell it for, what it costs you, and what Amazon takes.
Enter your price and costs
Add your selling price, landed product cost and your shipping or FBA fulfillment fee per unit.
Add Amazon fees and ads
Set your category's referral fee (most categories fall between 8% and 15%) and any ad spend per unit.
Read your real profit
See profit per unit, margin and ROI. Add monthly units to estimate what the product earns each month.
Margins too thin? Here's where we help
Most Amazon sellers lose profit to the same few leaks. Our team fixes them as part of your account management.
High ad spend
Restructure campaigns to cut wasted clicks and bring ACoS under control.
Amazon Ads Service →Lost FBA inventory
Recover money Amazon owes you for lost, damaged or misplaced units.
FBA Reconciliation →No time to manage it
A dedicated team runs your Seller Central account day to day.
Account Management →Amazon Margin Calculator FAQs
How is Amazon profit calculated?
Profit per unit = selling price − product cost − shipping or FBA fee − referral fee − ad spend per unit. The referral fee is a percentage of your selling price.
What is the Amazon referral fee?
It's the commission Amazon charges on each sale, set by product category. For most categories it falls between 8% and 15% of the selling price. Check Amazon's fee schedule for your exact category.
Does this include FBA fees?
Yes, if you enter your FBA fulfillment fee in the "Shipping / FBA fee" field. FBA fees depend on your product's size and weight, so use the fee shown for your item in Seller Central.
What is a good profit margin on Amazon?
Many sellers aim for a margin of 20% or more after all fees and ads, but the right target depends on your category, price point and growth goals.
Can ReyEcomOps help improve my Amazon margins?
Yes. We manage listings, PPC, inventory and reconciliation for US brands. Book a free audit and we'll show you where your account is losing profit.
Want a full profit check on your Amazon store?
Get a free audit of your listings, ads and fees from our Amazon account management team.