Angle Converter
Convert angles between degrees, radians, gradians, arcminutes, and arcseconds.
How it works
Enter an angle value in any source unit to get instant conversions to all other geometric representations in real time.
Frequently asked questions
What is a Radian?
A Radian (rad) is the standard unit of angular measure used in mathematics and physics. One radian is the angle subtended at the center of a circle by an arc equal in length to the radius.
What is the relationship between Degrees and Radians?
A full 360-degree rotation equals 2π radians. Therefore, 180 degrees is exactly equal to π radians (approx. 3.14159 rad).
What are arcminutes and arcseconds used for?
They are sexagesimal subdivisions of a degree used in astronomy, cartography, and navigation. A degree is divided into 60 arcminutes ('), and each arcminute is divided into 60 arcseconds ('').