Radians
The radian - a unit of angle measure - angular velocity
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The radian is the SI derived unit of angle.
There are 2 π (pi) radians (about 6.283185) in a complete circle.
- 1 rad = 360o / 2 π =~ 57.29578o (1)
The radian 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.
Converting angular velocity to other units
- 1 rad/s = 9.55 r/min (rpm) = 0.159 r/s (rps) (2)
RPM to Radians and Degrees per Second Converter
| RPM | Angular Velocity | |
| (rad/s) | (deg/s) | |
| 0 | 0.0 | 0 |
| 10 | 1.0 | 60 |
| 20 | 2.1 | 120 |
| 30 | 3.1 | 180 |
| 40 | 4.2 | 240 |
| 50 | 5.2 | 300 |
| 60 | 6.3 | 360 |
| 70 | 7.3 | 420 |
| 80 | 8.4 | 480 |
| 90 | 9.4 | 540 |
| 100 | 10.5 | 600 |
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