Google Review Calculator
Instantly calculate how many new 5-star Google reviews you need to reach your
target star rating and grow your local visibility.
How the Google Review Calculator Works
This tool helps you quickly figure out how many new 5-star reviews you’ll need to reach your desired Google rating based on your current score and total reviews.
Enter Your Current Rating
Add the exact star rating shown on your Google Business Profile, such as 3.8, 4.2, or 4.6.
Enter Your Total Reviews
Type in how many reviews you currently have. The more reviews you have, the more 5-star ratings are needed to improve your average.
Choose Your Target Rating
Select the rating you want to achieve—like moving from 4.0 to 4.5—and click Calculate to see how many 5-star reviews you need.
Why Improving Your Google Rating Matters
Your Google star rating is often the first trust signal potential customers see in Search and Maps. Even a small jump in rating can dramatically improve clicks, calls, and conversions for your business.
Better Local SEO Visibility
Businesses with more positive Google reviews and higher average ratings tend to rank better in the local pack and Google Maps, giving you more visibility when customers search nearby.
Stronger Customer Trust
Many studies show that consumers trust businesses more when their rating is in the 4.2–4.5 star range, making them more likely to choose you over lower-rated competitors.
More Clicks, Leads & Revenue
A higher Google rating increases the chances that people will click your listing, visit your website, call your business, and ultimately become paying customers.
Use this Google Review Calculator to set realistic review goals, plan your review generation campaigns, and take control of your online reputation one 5-star review at a time.
Frequently Asked Questions
What is a Google Review Calculator?
A Google Review Calculator is a simple tool that helps you estimate how many additional 5-star Google reviews you need to reach a specific average rating for your business. It uses your current rating and total number of reviews to project how many new 5-star reviews are required to hit your target score.
How does this Google Review Calculator work?
The calculator multiplies your current average rating by your total number of reviews to get your current “points”, then adds 5 points for every new 5-star review until the new average meets your target rating. The result is rounded up to the nearest whole review so you know the minimum number of 5-star reviews needed.
Why do I need more 5-star reviews to move my rating?
As your total number of reviews grows, each new review has a smaller impact on your average rating, which means you need more 5-star reviews to shift the score. Businesses with hundreds of reviews often need a much larger volume of new positive feedback to see even a 0.1 increase in their visible rating.
Can I really reach a perfect 5.0 star rating?
Reaching a perfect 5.0 rating is only realistic if all of your existing reviews are already 5 stars or you have very few reviews. Once you have several lower-star reviews in your profile, you may never mathematically reach a true 5.0, so aiming for a strong rating in the 4.5+ range is usually more achievable.
Does improving my Google rating help with local SEO?
Yes, positive Google reviews are a known local ranking factor and can help your business appear more prominently in Google Maps and the local pack. A higher average rating and consistent review activity also increase user trust, which can lead to more clicks, calls, and store visits from local search.