›› SI derived quantity: angle

This category of measurement units is defined by the "angle" type, which is an SI derived quantity.


›› SI unit: radian

The SI derived unit for angle is the radian.


›› Convert radian to another unit

Convert radian to  


›› Convert between two angle units

Convert 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").


›› Angle units

1/10 circle
1/16 circle
1/2 circle
1/4 circle
1/6 circle
1/8 circle
arcminute
arcsecond
degree
full circle
grad
mil
percent
point
radian
revolution