Gigahertz to Megahertz Converter
Convert gigahertz to megahertz instantly. Exact factor: 1 GHz = 1,000 MHz.
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Convert gigahertz to megahertz
The exact conversion factor is 1 GHz = 1,000 MHz. Type any value and the result updates instantly; the math is shown beneath the board.
Worked by hand
Multiply the gigahertz value by 1,000 to get megahertz.
Worked example
- Take 1 GHz
- multiply by 1,000
- the result is 1,000 MHz
How to use it
- Enter your gigahertz
- Read the megahertz result
- Check the factor line to verify by hand
Frequently asked questions
How many megahertz are in one gigahertz?
Exactly 1,000 MHz, by the SI/NIST definition.
How do I convert megahertz back to gigahertz?
Divide by 1,000 — or use the full converter where both directions are one click.
Is this rounding or exact?
The factor is exact; only the displayed decimals are rounded.