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| 21 Kilohertz | to common frequency units |
|---|---|
| 21 kHz | = 21000 hertz (Hz) |
| 21 kHz | = 21 kilohertz (kHz) |
| 21 kHz | = 0.021 megahertz (MHz) |
| 21 kHz | = 2.1E-5 gigahertz (GHz) |
| 21 kHz | = 21000 1 per second (1/s) |
| 21 kHz | = 131946.89152696 radian per second (rad/s) |
| 21 kHz | = 1260000.000504 revolutions per minute (rpm) |
| 21 kHz | = 21000 frames per second (FPS) |
| 21 kHz | = 453602903.05858 degree per minute (°/min) |
| 21 kHz | = 2.1E-8 fresnels (fresnel) |