What is a Radian (rad)?
A radian (rad) is the SI unit of angle, defined as the angle subtended by an arc equal in length to the radius of the circle.
Definition
Symbol
rad
Category
Angle
System
SI
1 {unit} = {value} {otherUnit}
1 Radian = 57.2958 Degree (°)
1 Radian = 63.662 Gradian (grad)
1 Radian = 0.159155 Turn (turn)
1 Radian = 3437.75 Arcminute (′)
1 Radian = 206265 Arcsecond (″)
Common Uses
- Trigonometry
- Physics calculations
- Computer graphics
