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 MHz to Hz?

Multiply the megahertz value by 1,000,000: Hz = MHz × 1,000,000. For example, 2.4 MHz = 2,400,000 Hz.

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 megahertz values?

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

How do I convert Hz back to MHz?

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

Megahertz to Hertz Converter

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

Frequency Input

Megahertz (MHz)

MHz

Hertz (Hz)

Result

Enter a value to see the result

Common Conversions

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

Click any row to load that value into the converter.

Summary

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

How it works

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

Use cases

Convert CPU or processor clock speeds from MHz to Hz for engineering calculations.
Express FM radio broadcast frequencies (87.5–108 MHz) in hertz.
Convert oscillator or crystal frequencies from MHz to Hz for datasheet comparisons.
Check RF signal frequencies when working with wireless modules.
Translate sensor sampling rates from MHz to Hz for signal processing.

Frequently Asked Questions

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