Amazon Sales Rank: What It Means and How to Read It
What Amazon Sales Rank (Best Sellers Rank) is, where to find it, how to read the category ranks, what a good sales rank is and how to use it in research.
Amazon Sales Rank, shown on the product page as Best Sellers Rank (BSR), shows how well a product sells compared with the other products in the same category. You find it in the product details. A lower number means more sales: #1 is the best seller of that category. Amazon says the rank is based on sales, updated often (its help pages say hourly), with recent sales weighing more than older ones.
Where to find the Sales Rank
Open the product page and scroll to Product information or Product details. The line Best Sellers Rank usually shows:
- A rank in a main category, for example #1,234 in Home & Kitchen.
- One or more ranks in subcategories, for example #12 in Food Storage Containers.
How to read it
- Lower is better. #1 sells the most in that category right now.
- Compare only within the same category. #5,000 in a large main category can mean more sales than #50 in a small subcategory. A rank says nothing next to a product from another category.
- It moves. Because recent sales count more, one good day can lift a rank and a slow day can drop it. One look tells you little.
- It is relative. The rank compares products; it does not say how many units a product sells.
What is a good Amazon Sales Rank?
There is no single number. It depends on the category: the same rank means very different sales in a large category and in a small one, and in one marketplace and another.
A practical way to judge it:
- Find the product’s most specific category (ASIN research: how to find related products).
- Look at the ranks of the other products in that category.
- Check the same products several times over a few days and look for steady ranks, not peaks.
Sales estimators turn a rank into estimated units. They can help, but they are estimates, not Amazon data.
Why a product may have no rank
- It is new and has not sold yet.
- It has not sold for a long time.
- Amazon shows no rank in some categories or layouts.
Variations of one product (colours, sizes) often show the same rank, because Amazon ranks them together.
How to use Sales Rank in product research
The Sales Rank is your quickest signal of demand. Use it together with the other checks:
- Price and your margin after Amazon’s fees.
- Competition: the number of sellers and who holds the Featured Offer (what the Buy Box is).
- Reviews of the leading products.
The full method is in Amazon product research.
The faster way: compare Sales Ranks with ENSKOM
Comparing ranks only makes sense inside one exact category, and checking them by hand means opening every product. ENSKOM’s ASIN Researcher is a Chrome extension that does it in your own browser:
- ASIN Researcher: start from your ASINs and get the products in their exact categories, graded Very Strong, Strong or Related. These are the products whose ranks you can compare.
- Detailed Research: for the products you select, collect the current Sales Rank, price, sellers, Featured Offer and fulfillment, as Amazon shows them. A value Amazon does not show is marked Unknown, never guessed.
- Export: copy the ASINs or export them to CSV or Excel to compare ranks over time.
The Free plan includes every research feature.
Guides: Read your results · Detailed Research · Start a new research
FAQ
Is Sales Rank the same as Best Sellers Rank (BSR)?
Yes. The product page calls it Best Sellers Rank, sellers often say BSR, and many tools, ENSKOM included, call it Sales Rank.
How often is the Amazon Sales Rank updated?
Amazon’s help pages say hourly. The rank reflects recent and historical sales, with recent sales weighing more, so it can move during the day.
Does Sales Rank show how many units a product sells?
No. It only compares products in a category. Unit numbers from other tools are estimates.
Why does a product have several ranks?
It has one rank in a main category and one in each subcategory it is listed in. Compare each rank only with products in the same category.
Is the Sales Rank the same in every marketplace?
No. Each marketplace has its own sales and its own ranks. Check the rank in the marketplace you sell in.