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Frequency converter

megahertz to gigahertz

Convert megahertz (MHz) to gigahertz (GHz). Use an editable frequency converter, conversion formula, and reference table.

0.001

1 MHz = 0.001 GHz

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Conversion formula

GHz = MHz × 0.001

One megahertz equals 0.001 gigahertz. Multiply your value in megahertz by this factor to get gigahertz. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 megahertz:
5 × 0.001 = 0.005 GHz

Conversion table

megahertz (MHz)gigahertz (GHz)
0.010.00001
0.10.0001
10.001
20.002
50.005
100.01
250.025
500.05
1000.1
10001

About these measurements

Frequency measures cycles per second.

The base reference used here is the hertz. One megahertz is 1,000,000 base units; one gigahertz is 1,000,000,000 base units.

Important distinctions

Frequency is the reciprocal of period, not angular velocity.

Precision

The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.

Common questions

How do I convert MHz to GHz?

Multiply the quantity in MHz by 0.001. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the gigahertz to megahertz converter.

Reference

NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.

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