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Angle Converter

Convert degrees, radians, gradians, arcminutes, arcseconds and turns.

How to use

  1. 1Enter an angle and its unit.
  2. 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.