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Megahertz to Gigahertz Converter

MHz → GHz: type a value and the result appears instantly.

1 MHz = 0.001 GHz
1 GHz = 1,000 MHz
—

How to convert megahertz to gigahertz

Use this formula:

GHz = MHz × 0.001

Examples

MHz to GHz conversion chart

megahertz (MHz)gigahertz (GHz)
0.1 MHz0.0001 GHz
0.25 MHz0.00025 GHz
0.5 MHz0.0005 GHz
1 MHz0.001 GHz
2 MHz0.002 GHz
3 MHz0.003 GHz
4 MHz0.004 GHz
5 MHz0.005 GHz
6 MHz0.006 GHz
7 MHz0.007 GHz
8 MHz0.008 GHz
9 MHz0.009 GHz
10 MHz0.01 GHz
12 MHz0.012 GHz
15 MHz0.015 GHz
20 MHz0.02 GHz
25 MHz0.025 GHz
30 MHz0.03 GHz
40 MHz0.04 GHz
50 MHz0.05 GHz
60 MHz0.06 GHz
70 MHz0.07 GHz
75 MHz0.075 GHz
80 MHz0.08 GHz
90 MHz0.09 GHz
100 MHz0.1 GHz
150 MHz0.15 GHz
200 MHz0.2 GHz
250 MHz0.25 GHz
500 MHz0.5 GHz
1,000 MHz1 GHz

About the units

Megahertz (MHz) is a metric (SI) unit. 1 MHz = 1,000 kHz.

Gigahertz (GHz) is a metric (SI) unit. 1 GHz = 1,000 MHz.

Frequently asked questions

How do I convert megahertz to gigahertz?
Multiply the value in MHz by 0.001.
How many gigahertz are in 1 megahertz?
1 MHz = 0.001 GHz.
What is 12 MHz in GHz?
12 MHz = 0.012 GHz.
How do I convert gigahertz to megahertz?
Use the reverse converter: GHz → MHz.

Frequency Converter →

Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters