Angle Converter
0.017453
1 Degree (°) = 0.017453 Radian (rad)
All Conversions
Degree (°)1
Radian (rad)0.017453
Gradian (grad)1.111111
Arcminute59.9988
Arcsecond3,597.122302
Turn (revolution)0.002778
How to Convert Angle Units
Angle conversion is essential in mathematics, engineering, navigation, and physics. The most common conversion is between degrees and radians.
Key Relationships
A full circle is 360 degrees, 2π radians, or 400 gradians. 1 radian ≈ 57.296 degrees. π radians = 180 degrees.
Frequently Asked Questions
How do I convert degrees to radians?
Multiply degrees by π/180. For example, 90° = 90 × π/180 = π/2 ≈ 1.5708 radians.