Easily convert angles between various units including degrees, radians, arcminutes, arcseconds, and gradians. This tool is designed for professionals and enthusiasts who need quick and accurate angle conversions.


10+ similar apps compared and reviewed
Trigr is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.


Easily convert angles between various units including degrees, radians, arcminutes, arcseconds, and gradians. This tool is designed for professionals and enthusiasts who need quick and accurate angle conversions.






Easily calculate unknown sides, angles, area, and perimeter of any triangle. Supports both right and oblique triangles with visual input modes and adjustable decimal places for accuracy. Includes a history tape and email sharing for recent calculations.





This engineering tool accurately calculates and marks bolt hole positions on flanges for machinists and fabricators. It offers features for equispaced, angle-based, and equivalent hole counts, saving time and reducing manual errors in workshop settings.