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Frequency
Gigahertz to Kilohertz
Convert gigahertz (GHz) to kilohertz (kHz). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 GHz = 1.0000e+6 kHz
Gigahertz to Kilohertz Conversion Table
Common values, ready to copy:
| gigahertz | kilohertz |
|---|---|
| 1 GHz | 1.0000e+6 kHz |
| 2 GHz | 2.0000e+6 kHz |
| 5 GHz | 5.0000e+6 kHz |
| 10 GHz | 1.0000e+7 kHz |
| 25 GHz | 2.5000e+7 kHz |
| 50 GHz | 5.0000e+7 kHz |
| 100 GHz | 1.0000e+8 kHz |
| 1,000 GHz | 1.0000e+9 kHz |
Formula
kilohertz = gigahertz × 1000000
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 Gigahertz and Kilohertz
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.
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 = gigahertz × 1000000, 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 gigahertz 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.