Enter a value and pick degrees, radians, gradians, arcminutes, or arcseconds, and the tool converts it to the others instantly.
Multiply degrees by π/180 (≈0.0174533). So 180° = π radians ≈ 3.14159 radians.
A gradian (or gon) divides a right angle into 100 units, so a full circle is 400 gradians.
1 degree = 60 arcminutes = 3,600 arcseconds.