›› Measurement unit: radian

Full name: radian

Plural form: radians

Symbol: rad

Alternate spelling: c

Category type: angle

Scale factor: 1

›› SI unit: radian

The SI derived unit for angle is the radian.

›› Convert radian to another unit

Convert radian to  

Valid units must be of the angle type.
You can use this form to select from known units:

Convert radian to  

›› Definition: Radian

In mathematics and physics, the radian is a unit of angle measure. It is the SI derived unit of angle. It is defined as the angle subtended at the center of a circle by an arc of circumference equal in length to the radius of the circle. Angle measures in radians are often given without any explicit unit. When a unit is given, sometimes the abbreviation rad is used, sometimes the symbol c (for "circular").

›› Sample conversions: radian

radian to point
radian to 1/6 circle
radian to 1/2 circle
radian to degree
radian to 1/16 circle
radian to arcsecond
radian to 1/4 circle
radian to grad
radian to percent
radian to full circle