How many hertz are in one megahertz?

Exactly 1,000,000 hertz equal one megahertz (1 MHz = 1,000,000 Hz). The "mega" SI prefix always means one million.

What is the formula to convert Hz to MHz?

Divide the hertz value by 1,000,000: MHz = Hz ÷ 1,000,000. For example, 2,400,000 Hz = 2.4 MHz.

What frequency range is measured in megahertz?

Megahertz covers roughly 1 MHz to 1,000 MHz (= 1 GHz). Common examples include FM radio (87.5–108 MHz), Wi-Fi (2,400 MHz), and older CPU speeds (100–1,000 MHz).

Can I convert decimal hertz values?

Yes. The converter accepts any positive number including decimals. For example, 1,500,500 Hz converts to 1.5005 MHz.

How do I convert MHz back to Hz?

Multiply by 1,000,000: Hz = MHz × 1,000,000. Use the swap button on this tool to flip the conversion direction.

Hertz to Megahertz Converter

Enter a frequency in hertz (Hz) and instantly get the equivalent value in megahertz (MHz).

Frequency Input

Hertz (Hz)

Megahertz (MHz)

MHz

Result

Enter a value to see the result

Common Conversions

Hertz (Hz)	Megahertz (MHz)
1,000 Hz	0.001 MHz
100,000 Hz	0.1 MHz
1,000,000 Hz	1 MHz
87,500,000 Hz	87.5 MHz (FM low)
100,000,000 Hz	100 MHz
108,000,000 Hz	108 MHz (FM high)
500,000,000 Hz	500 MHz
1,000,000,000 Hz	1,000 MHz (= 1 GHz)

Click any row to load that value into the converter.

Summary

Hertz (Hz) and megahertz (MHz) are both units of frequency. One megahertz equals exactly 1,000,000 hertz, so converting between them is a simple division or multiplication by one million. This tool does the arithmetic instantly for any value you enter, and also lets you reverse the direction from MHz back to Hz.

How it works

Enter a frequency value in the hertz (Hz) field.
The converter divides the value by 1,000,000 to get megahertz.
The result appears immediately with up to 6 significant digits.
Click the swap button to reverse the direction (MHz → Hz).
Use the copy button to copy the result to your clipboard.

Use cases

Convert CPU or processor clock speeds from Hz to MHz.
Express radio broadcast frequencies (FM band) in megahertz.
Convert oscillator or crystal frequencies listed in Hz to MHz for datasheets.
Check RF signal frequencies when working with wireless modules.
Translate sensor sampling rates from Hz to MHz for comparison.

Frequently Asked Questions

Last updated: 2026-06-19 · Reviewed by Nham Vu