Free Amazon Sales Estimator
Pick the marketplace and category, enter the Best Sellers Rank, and see how many units a product sells a month. Or look up an ASIN.
Calculate profit for a whole supplier list
Upload a supplier file to Price List Analyzer. It finds the ASIN for every UPC and EAN and shows fees, profit, ROI and monthly sales for every row.
Perfect for: wholesale price lists · distributor catalogs · liquidation manifests
Your numbers
What you pay the supplier for one unit.
Amazon prices include VAT. Enter your rate if you are VAT-registered.
No FBA fee for this product: its package size is missing. FBM numbers are below.
See these numbers on every Amazon product page
The Seller Assistant extension shows fees, profit, ROI, sales estimates and restrictions right on Amazon, with your own costs saved.
How to Estimate Amazon Sales
- Step 1
Pick the marketplace and category
Choose the Amazon marketplace and the product’s root category, the one its Best Sellers Rank is in. Or switch to By ASIN and paste the product.
- Step 2
Enter the BSR
Copy the Best Sellers Rank from the product page, under Product information, and enter it as a number.
- Step 3
Read the monthly sales
The estimate comes from the sales model of that category and marketplace.
How BSR Turns into Sales
Best Sellers Rank says how a product sells compared with the rest of its category. The same rank means different sales in different categories.
BSR Is Relative
A rank of 1,000 in Toys & Games and 1,000 in Musical Instruments are different products: the bigger the category, the more sales a rank stands for.
BSR Changes Every Hour
One sale can move a slow product up thousands of places. Read the rank with its history, and do not judge a product by a single spike.
One Model per Category
Seller Assistant trains a sales model for each root category on each marketplace, and retrains it every month on fresh data.
An Estimate, Not a Count
The models learn from Amazon’s "bought in past month" badge, which Amazon rounds (50+, 100+, 1K+). Read the result as the order of magnitude, not an exact number of units.
What Resellers Use It For
Decide How Many Units to Buy
Divide the monthly sales by the number of FBA sellers on the listing to see your share, then order a month or two of stock, not a year of it.
Compare Two Suppliers’ Products
A product with half the profit and five times the sales earns more per month. The estimated monthly profit puts both on one scale.
Check a Category Before You Enter It
Estimate a few ranks in the category, for example 10,000, 50,000 and 100,000, to see how fast sales fall with rank. In a steep category only the top few thousand ranks sell well.
Need only the fees? The free Amazon FBA Calculator leads with the fee breakdown, ROI and break-even price.
Frequently Asked Questions
Visit Help CenterHow does the Amazon sales estimator work?
How accurate are Amazon sales estimates?
How do I convert a BSR to sales?
Why are there no estimates for some marketplaces?
What is the highest estimate?
Is the Amazon sales estimator free?
See Sales Estimates on Every Amazon Page
The Seller Assistant extension shows the monthly sales estimate, fees and profit on every product page and search result.
14-day risk-free trial. Cancel anytime.
Not sure which plan fits your sourcing workflow? Chat with our team — we're happy to help.