Angle Converter
Convert degrees, radians, gradians, arcminutes, arcseconds and turns.
How to use
- 1Enter an angle and its unit.
- 2Choose the unit to convert to.
How it's calculated
Converts through degrees. π radians = 180°; 1 gradian = 0.9°; 1° = 60 arcminutes = 3,600 arcseconds.
Frequently asked questions
How do I convert degrees to radians?
Multiply by π/180. For example 90° × π/180 = π/2 ≈ 1.5708 rad.
What is a gradian?
One four-hundredth of a full turn (0.9°), used in some surveying.
How many arcseconds are in a degree?
3,600 — 60 arcminutes, each made of 60 arcseconds.