Angle Converter
Convert between different angle measurement units instantly. Supports degrees, radians, gradians (gons), arcminutes, arcseconds, turns, and more. Essential for mathematics, engineering, navigation, astronomy, and trigonometry calculations.
3.1415926536 rad
180° = 3.1415926536 rad
Common Angles
Right Angle
90° = π/2 rad
Straight Angle
180° = π rad
Full Circle
360° = 2π rad
45 Degrees
45° = π/4 rad
FAQ
How do I convert degrees to radians?
To convert degrees to radians, multiply by pi/180. For example, 180 degrees equals pi radians (approximately 3.14159), and 90 degrees equals pi/2 radians (approximately 1.5708).
How do I convert radians to degrees?
To convert radians to degrees, multiply by 180/pi. For example, 1 radian equals approximately 57.2958 degrees. Pi radians equals 180 degrees.
What is a gradian (gon)?
A gradian (or gon) divides a right angle into 100 parts, so a full circle has 400 gradians. One gradian equals 0.9 degrees or pi/200 radians. Gradians are used in surveying and some European countries.