How Does Amazon.com Sales Rank Work?

AMAZON.COM SALES RANK

Amazon assigns a sales rank to every product that has sold at least one time.

The lower the number, the better the product is selling.

For example, a sales rank of 2500 is better than a sales rank of 375,000.

The product that sells the best in its category has a sales rank of 1.

CATEGORY RANKS

Amazon has different ranks for different types of products.

Books are ranked independently from sports equipment and video games, for example.

For a given type of product, there are also category ranks.

For example, a few Books categories include Romance, Children’s, and Science.

A great overall rank is more impressive than a category rank.

For example, a book has to sell quite frequently to rank 500 overall in Books, but can sell much less frequently and still rank 500 in Romance.

A good rank in a broad category is more…