Aspect Ratio X 2.25 – Rule of Three Calculator

Aspect Ratio X is a rule-of-three calculator.
 
Features

Calculate aspect ratios (rule of three)
Swap values horizontally and vertically
Select scales and ratios
Browse common resolutions
Browse recent ratios
Formula preview
Uses imperial or metric system automatically based on your system settings
Multi-window support
Optimized for macOS 11+
Optimized for Mac with M1 (Apple Silicon)

 
WHAT’S NEW
Version 2.25:

Just a little tune-up to keep things running smoothly. This app is now almost ten years old. Thank you for your continued support!

 
REQUIREMENTS

Intel, 64-bit processor
macOS 11.5 or later

ScreenShots