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# Radian per second

The radian per second (symbol: rad·s−1 or rad/s) is the SI unit of angular velocity.

### Additional recommended knowledge

The radian per second is defined as the change in the orientation of an object, in radians, every second.

## Conversions

1 radian per second is equivalent to:

≈ 57.296 degrees per second (approximately)
≈ 9.549 revolutions per minute (approximately)
≈ 0.159 Hz (approximately)
$\frac{1}{2 \cdot \pi}$ Hz (exactly)