Convert frequency between hertz, kilohertz, megahertz, gigahertz, RPM and angular velocity units.
| Conversion | Result | Formula |
|---|---|---|
| Megahertz to hertz | 1 MHz = 1,000,000 Hz | hertz = megahertz × 1,000,000 |
| Hertz to megahertz | 1 Hz = 0.000001 MHz | megahertz = hertz ÷ 1,000,000 |
| Kilohertz to hertz | 1 kHz = 1,000 Hz | hertz = kilohertz × 1,000 |
| Hertz to kilohertz | 1 Hz = 0.001 kHz | kilohertz = hertz ÷ 1,000 |
| Gigahertz to megahertz | 1 GHz = 1,000 MHz | megahertz = gigahertz × 1,000 |
| Megahertz to gigahertz | 1 MHz = 0.001 GHz | gigahertz = megahertz ÷ 1,000 |
| Revolutions per minute to hertz | 1 rpm = 0.0166667 Hz | hertz = revolutions per minute ÷ 60 |
| Hertz to revolutions per minute | 1 Hz = 60 rpm | revolutions per minute = hertz × 60 |
| Revolutions per minute to radians per second | 1 rpm = 0.10472 rad/s | radians per second = revolutions per minute × 0.10471976 |
| Radians per second to revolutions per minute | 1 rad/s = 9.5493 rpm | revolutions per minute = radians per second × 9.5492966 |
| Unit | Symbol | Equal to |
|---|---|---|
| Hertz | Hz | 1 Hz |
| Millihertz | mHz | 0.001 Hz |
| Kilohertz | kHz | 1,000 Hz |
| Megahertz | MHz | 1,000,000 Hz |
| Gigahertz | GHz | 1,000,000,000 Hz |
| Terahertz | THz | 1,000,000,000,000 Hz |
| Revolution per minute | rpm | 0.016666667 Hz |
| Radian per second | rad/s | 0.15915494 Hz |
| Degree per second | °/s | 0.0027777778 Hz |
| Beat per minute | BPM | 0.016666667 Hz |
Frequency is how many times something repeats each second. One hertz is one cycle per second. Period is the inverse: a 50 Hz signal repeats every 1 ÷ 50 = 0.02 seconds.
Rotating machinery uses revolutions per minute: divide RPM by 60 to get hertz. Angular velocity in radians per second equals hertz multiplied by 2π.
One megahertz is 1,000,000 hertz.
Divide RPM by 60. For example, 3,000 rpm is 50 Hz.
Multiply hertz by 2π (about 6.28319). For example, 50 Hz is about 314.16 rad/s.