How many Google reviews do I need to get 5 stars
It depends on your current rating and review count. Here’s an interactive calculator:
How many 5-star reviews do I need?
Current rating
4.2 ⭐
Current reviews
50
Target rating
4.5 ⭐
5-star reviews needed
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New total reviews
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New rating
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A few things worth knowing about how Google calculates ratings:
Each new 5-star review adds 5 points to the sum, but also adds 1 to the denominator, so the math is non-linear — the more reviews you already have, the harder it is to move the needle quickly. A business with 500 reviews needs far more 5-stars to shift from 4.2 to 4.5 than one with 20 reviews.
A true 5.0 average is essentially impossible once you have any non-5-star reviews, which is why aiming for 4.8–4.9 is more realistic and still looks excellent to potential clients.
