Megahertz to Kilohertz
A megahertz is one million hertz, used for FM radio frequencies and older CPU clock speeds. A kilohertz is 1,000 hertz, used to describe audio sample rates and AM radio broadcast frequencies. 1 MHz equals 1,000 kHz, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to frequency, measured here against frequency's base unit (Hz) — every other frequency unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
kHz = MHz × 1,000
MHz = kHz × 0.001
Worked example: 5 MHz × 1,000 = 5,000 kHz.
Conversion table
| Megahertz (MHz) | Kilohertz (kHz) |
|---|---|
| 1 MHz | 1,000 kHz |
| 2 MHz | 2,000 kHz |
| 3 MHz | 3,000 kHz |
| 5 MHz | 5,000 kHz |
| 10 MHz | 10,000 kHz |
| 20 MHz | 20,000 kHz |
| 25 MHz | 25,000 kHz |
| 50 MHz | 50,000 kHz |
| 100 MHz | 100,000 kHz |
| 250 MHz | 250,000 kHz |
| 500 MHz | 500,000 kHz |
| 1,000 MHz | 1,000,000 kHz |
Frequently asked
- How many Kilohertz in a megahertz?
- 1 MHz equals 1,000 kHz.
- How do I convert Megahertz to Kilohertz?
- Multiply the value in MHz by 1,000 to get kHz. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Megahertz and Kilohertz are both defined by a fixed conversion factor to frequency's base unit (Hz), so the result shown is exact to the precision displayed, not an approximation.