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)

Compatibility: macOS 10.12 or later
Mac App Store https://apps.apple.com/app/aspect-ratio-x/id1156930257

Screenshots