Amazon lists more than 3 billion products worldwide.
According Scrapehero as of January 2018, Amazon in United States has 560 million product listings. This is actually 17 million fewer products than the month prior.
Given the number of product variants in the category, it’s not surprising that clothing, shoes & jewelry have the largest number of products of all the categories.
Amazon lists more than 3 billion products across 11 marketplaces worldwide.