Average Star Rating Calculator — free online
You watch your rating sit at 4.3 and wonder how many good reviews it would take to push it up. Counting it by hand is fiddly, and one bad review feels heavier than it really is. We added a free tool that does the math for you — Average Star Rating Calculator — right in your browser.
What it does
You type in how many reviews you have at each star level, from one to five, and it gives you your weighted average. Then you set a target rating, and it tells you exactly how many more 5-star reviews you'd need to reach it. No spreadsheets, no guessing.
Nothing leaves your device
The whole thing runs inside your browser. Your review numbers stay on your screen — nothing is uploaded to a server and nothing is saved anywhere. When you close the tab, it's gone.
How to use it
- Open Average Star Rating Calculator and enter how many reviews you have at each star level.
- Set the target rating you'd like to reach.
- Read off your current average and the number of 5-star reviews you need.
It's free with no limit. There are more small tools on the Apps page.