Amazon adds up all the customer scores and then divides it by the number of total scores to get the average star score for the product. This means that if there are more 5-star reviews, the product’s star score will be higher, and if there are more 1-star reviews, the star score will be lower.

1. What is the algorithm for Amazon review star rating?

1. The components of Amazon star rating

Amazon’s star rating is composed of five different scores, ranging from one star to five stars, with one star representing the lowest score and five stars representing the highest score. The five levels are: 1 star, 2 stars, 3 stars, 4 stars, and 5 stars.

2. How to calculate Amazon’s star rating

Amazon’s star rating is obtained by taking a weighted average of all customers’ product reviews. In simple terms, Amazon adds up all the customer scores and then divides it by the number of total scores to get the average star score for the product. This means that if there are more 5-star reviews, the product’s star rating will be higher, and if there are more 1-star reviews, the star rating will be lower.

2. Does the star rating affect the weight of Amazon review?

1. Weight distribution

Amazon’s star rating is not just a simple average, it also takes into account the weight of different types of reviews. Generally speaking, Amazon pays more attention to reviews that have verified purchases because these reviews are considered more reliable. Untested reviews still affect star ratings, but they are less weighted.

2. Real-time star rating

Amazon’s star score is updated in real time. Whenever a new review is submitted, the star score is updated accordingly. This means that if you get a new good review, your star score may rise, and vice versa.

3. Influence of star rating

Amazon’s star rating is directly related to consumer consumption behavior. The star rating of a product is usually displayed on the search results page and the product details page. Higher star ratings usually attract more consumers and increase sales.

4. Full 5-star review

In order to get a 5-star review, Amazon encourages sellers to provide excellent products and services. This is because 5-star reviews generally show extremely high customer satisfaction. Merchants can improve their star ratings by providing high-quality goods, resolving problems quickly, and providing excellent customer service.