Hz to MHz Converter

How to convert hertz to megahertz?

To convert hertz to megahertz, divide by 1,000,000. The mega- SI prefix is exactly 10^6, and the hertz inherits its precision from the caesium-atomic-clock-based SI second. BigNumber arithmetic preserves precision for very large or very small frequency values.

f_(MHz) = f_(Hz) / 1,000,000

Example

Convert 1,000,000 hertz to megahertz:

f_(MHz) = 1,000,000Hz / 1,000,000 = 1MHz

How many megahertz in a hertz?

Exactly 10^−6 MHz, or 0.000001 MHz.

1 Hz = 10^−6 MHz

How many hertz in a megahertz?

Exactly 10^6 Hz, or 1,000,000 Hz.

1 MHz = 1,000,000 Hz

What is the SI definition of megahertz?

The megahertz is the SI-prefixed unit equal to 10^6 hertz. The mega- prefix is fixed at exactly one million by the BIPM, and the hertz inherits its precision from the atomic-clock definition of the second.

What uses MHz frequencies?

MHz dominates consumer wireless: FM radio (88–108 MHz), VHF TV (174–216 MHz), 433 MHz key fobs, 900 MHz GSM, 2400 MHz Wi-Fi, 5800 MHz Wi-Fi (5 GHz band). Also CPU clocks historically (4.77 MHz original IBM PC), USB 3.0 5 GHz signaling, and audio oscilloscope timebases.

Why convert Hz to MHz?

Because RF datasheets and SDR tuning interfaces predominantly use MHz, while low-level oscillator and DSP registers use Hz. Keeping the same number readable in both units is the difference between a clean spec sheet ('2400 MHz channel') and a register value (2400000000).

Popular hertz to megahertz conversion table