Frequency Converter
Convert between 10 frequency units instantly. Enter a value, pick your units and get the result with the formula, a full conversion table and worked examples.
1 kHz in all frequency units
Updates live as you type. Click a row to set it as the target unit.
| Unit | Symbol | Value |
|---|---|---|
| Cycle per hour | cph | 3,600,000 |
| Millihertz | mHz | 1,000,000 |
| Cycle per minute | cpm | 60,000 |
| Revolution per minute | rpm | 60,000 |
| Radian per second | rad/s | 6,283.19 |
| Hertz | Hz | 1,000 |
| Kilohertz | kHz | 1 |
| Megahertz | MHz | 0.001 |
| Gigahertz | GHz | 0.000001 |
| Terahertz | THz | 1 × 10−9 |
How to Convert Frequency Units
Frequency is the number of cycles per unit time. The SI unit is the hertz (Hz = 1 cycle per second); power systems run at 50 or 60 Hz, and rotating machine speed can be expressed as cycles per minute.
Every unit on this page is stored as a fixed factor relative to one reference unit, the hertz (Hz). Converting is a two step multiply and divide:
- Multiply your value by the factor of the source unit to get the value in Hz.
- Divide that result by the factor of the target unit.
Kilohertz to Hertz conversion table
| Kilohertz (kHz) | Hertz (Hz) |
|---|---|
| 1 kHz | 1,000 Hz |
| 2 kHz | 2,000 Hz |
| 3 kHz | 3,000 Hz |
| 4 kHz | 4,000 Hz |
| 5 kHz | 5,000 Hz |
| 6 kHz | 6,000 Hz |
| 7 kHz | 7,000 Hz |
| 8 kHz | 8,000 Hz |
| 9 kHz | 9,000 Hz |
| 10 kHz | 10,000 Hz |
| 15 kHz | 15,000 Hz |
| 20 kHz | 20,000 Hz |
| 25 kHz | 25,000 Hz |
| 30 kHz | 30,000 Hz |
| 40 kHz | 40,000 Hz |
| 50 kHz | 50,000 Hz |
| 75 kHz | 75,000 Hz |
| 100 kHz | 100,000 Hz |
| 250 kHz | 250,000 Hz |
| 500 kHz | 500,000 Hz |
| 1,000 kHz | 1,000,000 Hz |
Frequency Units and Conversion Factors
Value of one unit expressed in Hz.
| Unit | Symbol | In Hz |
|---|---|---|
| Cycle per hour | cph | 0.0002777777778 |
| Millihertz | mHz | 0.001 |
| Cycle per minute | cpm | 0.01666666667 |
| Revolution per minute | rpm | 0.01666666667 |
| Radian per second | rad/s | 0.1591549431 |
| Hertz | Hz | 1 |
| Kilohertz | kHz | 1,000 |
| Megahertz | MHz | 1,000,000 |
| Gigahertz | GHz | 1,000,000,000 |
| Terahertz | THz | 1,000,000,000,000 |
Frequently Asked Questions
What is the SI unit of frequency?
The SI unit of frequency is the hertz (Hz). Frequency is the number of cycles per unit time.
How do I convert Hz to rpm?
To convert hertz (Hz) to revolution per minute (rpm), multiply the value in Hz by 60. For example, 1 Hz = 60 rpm.
How do I convert kHz to Hz?
To convert kilohertz (kHz) to hertz (Hz), multiply the value in kHz by 1,000. For example, 1 kHz = 1,000 Hz.
How do I convert MHz to kHz?
To convert megahertz (MHz) to kilohertz (kHz), multiply the value in MHz by 1,000. For example, 1 MHz = 1,000 kHz.
Can I see a value in every frequency unit at once?
Yes. Enter a value and choose the source unit; the "all units" table below the converter instantly lists the equivalent in all 10 supported units. Click any row to make it the target unit.
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