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Frequency
Megahertz to Kilohertz
Convert megahertz (MHz) to kilohertz (kHz). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 MHz = 1000 kHz
Megahertz to Kilohertz Conversion Table
Common values, ready to copy:
| megahertz | kilohertz |
|---|---|
| 1 MHz | 1000 kHz |
| 2 MHz | 2000 kHz |
| 5 MHz | 5000 kHz |
| 10 MHz | 10000 kHz |
| 25 MHz | 25000 kHz |
| 50 MHz | 50000 kHz |
| 100 MHz | 100000 kHz |
| 1,000 MHz | 1.0000e+6 kHz |
Formula
kilohertz = megahertz × 1000
Frequency uses the SI hertz (Hz, cycles per second). 1 kHz = 1,000 Hz; 1 MHz = 1 million Hz; 1 GHz = 1 billion Hz. RPM and BPM are both "cycles per minute": 60 RPM = 1 Hz.
About Megahertz and Kilohertz
Megahertz (MHz): A million hertz; the unit for FM radio, older computer clock speeds, and microwave-band wireless. Common uses: FM radio (88-108 MHz), microcontroller clock speeds, ham radio, and some Wi-Fi specifications.
Kilohertz (kHz): A thousand hertz; the unit for AM radio frequencies and low-frequency audio. Common uses: AM radio (530-1700 kHz), keyboard scan rates, and the upper end of human audible frequencies.
How the conversion works
Frequency uses the SI hertz (Hz, cycles per second). 1 kHz = 1,000 Hz; 1 MHz = 1 million Hz; 1 GHz = 1 billion Hz. RPM and BPM are both "cycles per minute": 60 RPM = 1 Hz.
The exact relationship is kilohertz = megahertz × 1000, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between megahertz and kilohertz comes up wherever frequency measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.