Rule of Three icon

Rule of Three

by eric.quanz+chromewebstore@protonmail.com · Workflow & Planning
FeaturedManifest V3 Free
View in Chrome Web Store Data as of 17 Oct 2026

Calculate rule of 3 math problems effortlessly!

Users
125
−3 in 30 days
Rating
4.0 / 5
−1.00 in 30 days
Ratings
3
+1 in 30 days
Store rank
#77K
#65K among extensions
Version
1.3
updated 27 Mar 2024

Users

monthly, 3 years
2086153Aug 2023Apr 2025Oct 2026
Latest, 17 Oct 2026: 125 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
023Aug 2023Apr 2025Oct 2026
Latest, 17 Oct 2026: 3 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Rule of Three

Sometimes you need to calculate some proportion math problem, such as "if 5 is 75%, then 10 is X". With this extension you can calculate this easily without having to memorize a formula.

Growth

WindowUsersChangeRatingsRating
7 days−5−3.8%+1−1.00
30 days−3−2.3%+1−1.00
6 months−4−3.1%+1−1.00
1 year−14−10.1%+1−1.00

Chrome Web Store search rankings

Where Rule of Three appears when people search the store, with the 30 day change
Search phrasePosition30 days
rule#80

Version history

2 versions recorded
1.327 Mar 2024
1.014 Apr 2018

Details

Category
Workflow & Planning
First seen
14 Apr 2018
Size
162 KB
Languages
en
Pricing
Free
Extension ID
liplmhhmejhbdabigmdcbcehomhbjcdb

Permissions and risk

Minimal riskimpact 0, likelihood 0

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