Google rating calculator

How your Google rating is worked out

In plain words, your rating is the average of all the star ratings customers have given you, shown rounded to one decimal. Three reviews of 5, 4 and 4 stars add up to 13, and 13 ÷ 3 is 4.33, which shows as 4.3. Google doesn’t publish every detail of how it counts reviews, so what you see on Google can differ a little from this.

To find how many new reviews you need, the calculator works out the average after adding n new reviews that average a stars, and finds the smallest n that gets you there:

needed = ceil( N × (t − r) ÷ (a − t) )

• N is your number of reviews now and r your rating now.
• a is what you expect the new reviews to average (5.0 if they would all be 5 stars).
• t is the point where your shown rating ticks over to the target. Because one decimal is shown, we aim for the target minus 0.05: 4.45 to show 4.5.

Example: a shop at 4.1 with 120 reviews that wants to show 4.5, with every new review at 5 stars, needs 120 × (4.45 − 4.1) ÷ (5 − 4.45) = 76.4, so 77 reviews. If the new reviews average 4.8, it is 120 × 0.35 ÷ 0.35 = 120 reviews.

If new reviews average no more than t, no number of them gets you there: an average can only move toward the average of what is added to it. That is why the calculator says so instead of giving a number.

Why a few bad reviews matter less as you grow

One new review moves your average by its distance from your rating, shared across every review you have. After a single new review of s stars, the average is (r × N + s) ÷ (N + 1).

Say two shops both average 4.5, and each gets one 1-star review. The shop with 20 reviews falls to (4.5 × 20 + 1) ÷ 21 = 4.33, so it shows 4.3. The shop with 200 reviews goes to (4.5 × 200 + 1) ÷ 201 = 4.48, so it still shows 4.5. This is only arithmetic, but it is why a steady flow of reviews protects a rating better than a short burst.

The honest way to raise it

• Ask every customer. Not only the ones who look happy. A rating built from everyone’s real experience is the one worth having.
• Make it easy. A direct link or QR code to your review box takes the hard part away. You can make both in a minute with our free Google review link and QR code tool, and print one of the free standee designs for your counter.
• Reply to every review. Thank the happy ones, and answer the unhappy ones calmly and specifically.
• Fix what reviews complain about. If three people mention a long wait, the next reviews are better when the wait is shorter.

Asking only your happy customers, or offering a discount, gift or anything else for a review, breaks Google’s rules, and Google can remove those reviews. Ask everyone the same way and let them say what they really think.

Google rating kaise badhaye?

• Har customer se review ke liye poochiye, sirf khush dikhne wale customers se nahi.
• Review dena aasan banaiye: apna review link aur QR yahan free banaiye aur counter pe rakhiye.
• Har review ka jawab dijiye, aur jo baat baar-baar aaye use theek kariye.
• Review ke badle discount ya gift mat dijiye: yeh Google ke rules ke khilaaf hai.