Free tool
Star Rating Calculator
Plan your next review push: see how many high-star reviews raise your average, or compute a weighted rating from your star breakdown.
You need about 72 additional 5-star reviews to reach 4.5.
Any “revenue impact” figures you see elsewhere are rough marketing estimates—not financial advice. Focus on the review math above.
Pull live review volume with Review Audit in the extension, or grow reviews with a review request link.
“How many 5-stars to hit 4.5?” should not need a spreadsheet
Owners set rating goals without the math. Guessing leads to unrealistic campaigns—or giving up too early when a few strong reviews would move the needle.
Who it's for
Business owners watching their stars
See a concrete review count needed to reach a target average.
Reputation consultants
Explain weighted averages and goals in plain numbers on client calls.
Marketing teams planning ask campaigns
Size the volume of review requests against a rating goal.
Use cases
Target rating planning
Enter current rating and count, set a goal, see how many 5-stars you need.
Weighted average from mix
Enter a star distribution to compute the blended average.
Expectation setting
Show stakeholders why large review bases move slower than new listings.
How it works
Choose a mode
Plan reviews needed for a target, or compute a weighted average from counts.
Enter your numbers
Use the rating and review count from your Google Business Profile.
Read the result
Get the count or average, then pair with Review Link / QR to collect reviews.
What you get
- Reviews-needed calculator for target star ratings
- Weighted average from a full star mix
- Clear math you can show clients
- No signup
- Pairs with review link and reply template tools
FAQ
Does this guarantee Google will show that rating?
No. It is arithmetic on the averages and counts you enter. Google’s public rating can lag or filter reviews.
Should I only chase 5-star reviews?
Ask for honest reviews. The calculator models 5-star volume for planning; real programs should still address service issues behind low ratings.
Where do I get my current rating and count?
From your Google Business Profile or Maps listing. Review Audit in the extension can pull review data for deeper analysis.
Related free tools
Generate a Google review request link and printable QR code from a Place ID.
Create printable review QR posters, table tents, or receipt strips from a Place ID.
Copy-ready Google review reply templates for every star rating.
Generate AggregateRating JSON-LD for local business rich results.
Need the full profile in one click? Basic Audit exports Place ID, CID, KG ID, and links from Google Maps.
Run audits on Google Maps
Install GMB Audit Tool to pull Place ID, CID, categories, reviews, and competitor scans without copy-paste.
Add to Chrome — free