Google Review Calculator

How many reviews to raise your rating?

Your star rating is a weighted average — every review counts equally, so the more you already have, the harder the average is to move. The calculator above does that maths for you: it solves for the number of new 5-star reviews needed to pull your current average up to the target you set.

The practical takeaway is usually the same: the earlier you build reviews, the cheaper each rating point is. At 20 reviews a few good ones reshape your profile; at 300, the same jump takes a steady, sustained stream. That's why consistent review growth beats a one-off burst — it's also a genuine local-ranking signal, not just a vanity number.

What the rating actually changes

Two things move when your rating climbs: how often Google surfaces you in the local pack, and how many of the people who see you actually click. A profile sitting at 4.0 gets scrolled past; the same business at 4.6 reads as the safe choice. The calculator gives you the target — closing the gap is about asking happy customers consistently, and topping up where it makes sense.