| Radian | … |
|---|---|
| An arc of a circle with the same length as the radius of that circle subtends an angle of 1 radian. The circumference subtends an angle of 2π radians. | … |
| General information | … |
| Unit system | SI |
| Unit of | angle |
| Symbol | rad |
| Conversions | … |
| 1 rad in … | … is equal to … |
| milliradians | 1000 mrad |
| turns | 1/2π turn ≈ 0.159154 turn |
| degrees | 180/π° ≈ 57.295779513° ≈ 57° 17′ 44.806″ |
| gradians | 200/π grad ≈ 63.661977 |
(echo:: @ ᯤ)