Convert Gigahertz to Millihertz
Enter the number of gigahertz that you want to convert to millihertz.
How to Convert Gigahertz to Millihertz
The gigahertz and millihertz are both units of frequency. By definition, 1 gigahertz equals exactly 1e12 millihertz. This means to convert gigahertz to millihertz, you multiply by 1e12.
Formula
Step-by-Step Example
Convert 5 GHz to millihertz:
We need to convert gigahertz to millihertz
Since 1 GHz = 1e12 mHz, multiply by 1e12
5 × 1e12 = 5e12
5 GHz = 5e12 mHz
Gigahertz to Millihertz Conversion Table
Quick reference table for common gigahertz to millihertz conversions. Click any value for detailed calculation.
| Gigahertz (GHz) | Millihertz (mHz) |
|---|---|
| 0.1 GHz | 100000000000 mHz |
| 0.5 GHz | 500000000000 mHz |
| 1 GHz | 1e12 mHz |
| 2 GHz | 2e12 mHz |
| 5 GHz | 5e12 mHz |
| 10 GHz | 1e13 mHz |
| 25 GHz | 2.5e13 mHz |
| 50 GHz | 5e13 mHz |
| 100 GHz | 1e14 mHz |
About These Units
Gigahertz (GHz)
A gigahertz (GHz) equals 1 billion hertz. Gigahertz measures modern CPU speeds (2-5 GHz), WiFi (2.4 GHz, 5 GHz, 6 GHz), 5G cellular (millimeter wave: 24-47 GHz), and microwave ovens (2.45 GHz). RAM speed is also measured in GHz.
Millihertz (mHz)
A millihertz (mHz) equals 0.001 hertz or one cycle per 1,000 seconds. Millihertz measures very slow oscillations: Earth tides, climate cycles, and seismic waves. Heart rate variability analysis uses millihertz frequencies.
Frequently Asked Questions
How do I convert gigahertz to millihertz?
To convert gigahertz to millihertz, multiply the value by 1e12. For example, 10 GHz = 1e13 mHz.
How many millihertz are in 1 gigahertz?
1 gigahertz equals 1e12 millihertz.
What is the formula for gigahertz to millihertz?
The formula is: mHz = GHz × 1e12.