Rule of 3

Contains ads
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image

About this app

This app helps you calculate proportions using the rule of three. It's easy to use and includes a helpful explanation of the rule.

Features:
Calculate proportions using the rule of three
Learn how to calculate the rule of three
Simple and easy-to-use interface

Benefits:
Save time and effort by using the app to calculate proportions for you
Learn how to calculate the rule of three so you can use it without the app
Use the app in a variety of situations, such as cooking, baking, and photography

Download the Rule of 3 app today and make calculating proportions a breeze!
Ideal application to calculate rule of 3, directly and inversely proportional
Updated on
Jan 15, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App activity and Device or other IDs
  • This app may collect these data types
    App info and performance
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new


- New calculation history with share and delete options.
- Copy and share results with a friendly verbal explanation.
- Refreshed interface with clearer titles and intuitive design.
- Enhanced video tab with collapsible info and stable player.
- Localized date formats and fixes for ad display errors.