Free Calculator

Google Review
Calculator

Find out exactly how many 5-star reviews you need to reach your target Google rating — and see how one bad review affects your score.

Current Rating

Current Google Rating (1–5)

Number of Existing Reviews

Your Goal

Target Rating

New Reviews Star Rating

Impact Simulation

Add N reviews and see new rating

Current Rating

4.2

★★★★☆

47 reviews

→

Target Rating

4.5

★★★★½

needs X more

To go from 4.2 → 4.5 you need:

—

5-star reviews

Review Scenarios

New ReviewsStar RatingNew ScoreChange

Impact of 1 Bad Review

1-star review impact on your score—

2-star review impact—

5-star reviews needed to recover from 1-star—

After adding 10 × 5-star reviews—