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Frequency
Megahertz to Gigahertz
Convert megahertz (MHz) to gigahertz (GHz). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 MHz = 0.001 GHz
Megahertz to Gigahertz Conversion Table
Common values, ready to copy:
| megahertz | gigahertz |
|---|---|
| 1 MHz | 0.001 GHz |
| 2 MHz | 0.002 GHz |
| 5 MHz | 0.005 GHz |
| 10 MHz | 0.01 GHz |
| 25 MHz | 0.025 GHz |
| 50 MHz | 0.05 GHz |
| 100 MHz | 0.1 GHz |
| 1,000 MHz | 1 GHz |
Formula
gigahertz = megahertz × 0.001
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 Gigahertz
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.
Gigahertz (GHz): A billion hertz; the unit for modern CPU clock speeds and Wi-Fi/cellular frequencies. Common uses: Computer processor speeds (most CPUs are 2-5 GHz), Wi-Fi bands (2.4 and 5 GHz), 5G cellular, and microwave-band radio.
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 gigahertz = megahertz × 0.001, 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 gigahertz 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.