Converters
Angle Converter
Convert between angle units — degrees, radians, gradians and turns.
1 ° equals
0.017453 rad
How it works
Enter an angle, pick the units and read the converted value instantly. Ideal for maths, engineering and programming where radians and degrees are used interchangeably.
Common conversions
180 degrees = π radians ≈ 3.14159 rad, 90 degrees = 100 gradians, and a full turn = 360 degrees = 2π radians.
Frequently Asked Questions
One degree equals π/180 ≈ 0.01745 radians. Conversely, one radian ≈ 57.2958 degrees.