Megahertz to Kilohertz Converter

Multiply megahertz by 1,000 to get kilohertz. 1 MHz = 1,000 kHz. For example, 7.2 MHz = 7,200 kHz and 100 MHz = 100,000 kHz.

Megahertz

MHz

Kilohertz

kHz

Common Conversions

Key Takeaways

1 MHz = 1,000 kHz. Multiply MHz by 1,000.
1.5 MHz = 1,500 kHz (AM radio range).
7.2 MHz = 7,200 kHz (shortwave radio).
100 MHz = 100,000 kHz (FM radio band).
0.0441 MHz = 44.1 kHz (CD audio rate).

How Do You Convert MHz to kHz?

Multiply megahertz by 1,000 to get kilohertz. The formula is: kHz = MHz x 1,000. Move the decimal point three places to the right.

Tom Brewer helps Maya tune in to a weather station at 7.3 MHz on the shortwave dial. Converting: 7.3 x 1,000 = 7,300 kHz. His radio bandspread dial is marked in kHz increments, so he tunes to 7,300 kHz. The station broadcasts weather forecasts for marine and aviation use.

Frequency Scale Reference

MHz	kHz	Hz	Example
0.001 MHz	1 kHz	1,000 Hz	Audio tone
0.020 MHz	20 kHz	20,000 Hz	Hearing limit
0.044 MHz	44.1 kHz	44,100 Hz	CD sample rate
0.540 MHz	540 kHz	540,000 Hz	AM radio low end
1.600 MHz	1,600 kHz	1,600,000 Hz	AM radio high end
14.0 MHz	14,000 kHz	14,000,000 Hz	20m ham band
88.0 MHz	88,000 kHz	88,000,000 Hz	FM radio low end
108.0 MHz	108,000 kHz	108,000,000 Hz	FM radio high end

Practical Applications

Shortwave Radio

Shortwave broadcasters use both units interchangeably. The 49-meter band spans 5.9-6.2 MHz (5,900-6,200 kHz). Tom Brewer logs a station from Japan at 6.155 MHz = 6,155 kHz. His logbook uses kHz because shortwave DX reports traditionally list frequencies in kilohertz for precision.

Crystal Oscillators

Maya Singh selects a crystal oscillator for her electronics project. She needs 3.579545 MHz = 3,579.545 kHz (the NTSC color burst frequency used in old TVs). Crystal vendors list frequencies in both MHz and kHz. She orders a 3.58 MHz crystal and trims it with a capacitor to the exact 3,579.545 kHz specification.

Sonar Systems

Coach Rivera teaches marine science. Fish finders use sonar at 0.05-0.2 MHz (50-200 kHz). Low frequency (50 kHz) penetrates deeper water but with less detail. High frequency (200 kHz = 0.2 MHz) shows more detail in shallow water. Commercial fishing boats often use dual-frequency systems to get both depth penetration and resolution.

Frequently Asked Questions

How many kHz is 1 MHz?

One megahertz equals exactly 1,000 kilohertz. Multiply MHz by 1,000 to get kHz.

How do I convert MHz to kHz?

Multiply MHz by 1,000 to get kHz. For example, 1.5 MHz = 1,500 kHz, 7.2 MHz = 7,200 kHz, and 100 MHz = 100,000 kHz.

What is 7.2 MHz in kHz?

7.2 MHz = 7,200 kHz. This is in the 40-meter amateur radio band. Shortwave listeners and ham radio operators commonly convert between MHz and kHz when tuning.

What is 2.4 GHz in kHz?

2.4 GHz = 2,400 MHz = 2,400,000 kHz. This is the WiFi frequency band. Using kHz for such high frequencies is uncommon because the numbers become unwieldy.

What audio sample rate is 0.0441 MHz?

0.0441 MHz = 44.1 kHz, which is the standard CD audio sample rate. Audio sample rates are almost always expressed in kHz because the numbers are more manageable.