CalcTriangle

Barn Door Apps LLC

About this app

CalcTriangle is an easy-to-use right triangle calculator built for carpenters, builders, and DIYers.

Enter any two sides, or one side and one angle, then tap Calc — CalcTriangle solves the rest and shows all sides, angles, area, and perimeter.

Features
• Supports feet, inches, and fractions (down to 1/16") — perfect for construction
• Metric mode with centimeters, millimeters, and meters
• Tap a field on the triangle to select it, then type your measurement
• Foot/Inch buttons with a fraction picker wheel for precise imperial entry
• Mode button cycles through display units
• Save and load triangles for quick reference on the job site
• Clean, simple interface designed for big fingers and bright sunlight

Completely rewritten in Swift for iOS 18. Fast, modern, and reliable.

What’s new

CalcTriangle 2.0

Right triangle calculator designed for carpenters and builders.

Enter any 2 values (sides or angles) to solve the complete triangle
Imperial mode with feet, inches, and 1/16th fraction precision
Metric mode with centimeters, millimeters, and meters
Visual triangle diagram with color-coded fields
Save and reload frequently used triangles
Custom numeric keypad with large touch targets for job site use