My router says it runs on the 2.4 GHz band. Is that the same as 2,400 MHz, and how many hertz is that?

Yes — 2.4 GHz = 2,400 MHz = 2,400,000,000 Hz (2.4 billion hertz). GHz, MHz, and Hz all describe the same frequency at different scales. Most consumer specs use GHz for readability; RF engineering often needs Hz for wavelength and antenna calculations.

I'm writing code that controls an oscillator and the library requires frequency in Hz. My datasheet shows 27 MHz — what value do I pass?

Pass 27,000,000. Multiply 27 × 1,000,000 = 27,000,000 Hz. Watch for integer overflow if you're using a 16-bit integer type — use 32-bit or 64-bit for large Hz values.

AM stations are around 850 kHz but FM stations are around 96.5 MHz — why such different numbers if both are radio?

AM operates in the 540–1700 kHz range (0.54–1.7 MHz), while FM uses 87.5–108 MHz — about 100× higher. Higher frequency means shorter wavelength and better audio fidelity, which is why FM sounds cleaner. The different scale labels simply reflect the most convenient representation for each band.

A CPU is advertised as running at 3,600 MHz. Is that 3.6 GHz, and how many hertz is it?

Exactly right — 3,600 MHz = 3.6 GHz = 3,600,000,000 Hz. Modern processors oscillate 3.6 billion times per second. Manufacturers sometimes list speeds in MHz to make the number look more impressive, but the underlying frequency is the same. See [MHz to GHz](/frequency/mhz-to-ghz/) for that conversion.

MHz to Hz Converter

Enter a value to instantly convert between frequency units.

From

Precision4 dp

1 Megahertz = 1000000 Hertz

Key Formulas

Hertz → Kilohertz

kHz = Hz × 0.001

Kilohertz → Hertz

Hz = kHz × 1000

Megahertz → Gigahertz

GHz = MHz × 0.001

Gigahertz → Megahertz

MHz = GHz × 1000

Formula

Hz = MHz × 1,000,000

Hertz is the SI base unit of frequency — cycles per second. Megahertz (MHz) is a million hertz, the scale used for FM radio, modern CPUs, and many wireless bands. Engineers and software tools working with signal processing, oscillators, or hardware timers often need the raw hertz value to plug into formulas: wavelength = speed of light ÷ Hz, or timer period = 1 ÷ Hz. Multiplying MHz by one million converts to the Hz values these formulas require.

Source: NIST SP 811, Table B.8

Last reviewed: 2026-06-11 · see our methodology

Frequently Asked Questions

Real-World Examples

An FM radio station broadcasts at 100 MHz. A signal processing textbook problem asks students to express this frequency in hertz for use in a wave equation — the answer is 100,000,000 Hz.

100 MHz = 100000000 Hz

Antenna designers and RF engineers express the 2.4 GHz Wi-Fi carrier as 2,400,000,000 Hz when working with wavelength or antenna length calculations.

2400 MHz = 2400000000 Hz

The NTSC colour subcarrier frequency is 3.58 MHz. Electronics hobbyists restoring vintage televisions convert it to 3,580,000 Hz to program replacement oscillator chips.

3.58 MHz = 3580000 Hz

The 433 MHz ISM band used by remote controls and IoT sensors. An RF library function expects the carrier frequency in hertz, so 433 MHz becomes 433,000,000 Hz.

433 MHz = 433000000 Hz

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MHz to Hz Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

Related Converters