Convert Megahertz (MHz) to Kilohertz (kHz)

1 megahertz equals 1000 kilohertz.

Formula: kHz = MHz × 1000

Megahertz to Kilohertz Converter

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How to Convert Megahertz to Kilohertz

1 megahertz = 1000 kilohertz

Kilohertz = Megahertz × 1000

Example: 1 MHz × 1000 = 1000 kHz

Reverse Conversion

To convert kilohertz back to megahertz:

  • Remember, 1 kilohertz equals 0.001 megahertz.
  • To convert 1000 kHz to MHz, multiply 1000 x 0.001, resulting in 1 MHz.

Common Megahertz to Kilohertz Conversions

Megahertz to Kilohertz (Part 1)
Megahertz Kilohertz Actions
1 megahertz 1000 kilohertz
5 megahertz 5000 kilohertz
10 megahertz 10000 kilohertz
25 megahertz 25000 kilohertz
Megahertz to Kilohertz (Part 2)
Megahertz Kilohertz Actions
50 megahertz 50000 kilohertz
100 megahertz 100000 kilohertz
500 megahertz 500000 kilohertz
1000 megahertz 1000000 kilohertz

Megahertz to kilohertz Conversion Table

Reference table with common megahertz to kilohertz conversions. All values calculated with high precision.

Megahertz to Kilohertz Table
0.0001 to 12

Megahertz Kilohertz Actions
0.0001 MHz 0.1 kHz
0.00025 MHz 14 kHz
0.0005 MHz 12 kHz
0.001 MHz 1 kHz
0.0025 MHz 2 12 kHz
0.005 MHz 5 kHz
0.01 MHz 10 kHz
0.025 MHz 25 kHz
0.05 MHz 50 kHz
0.1 MHz 100 kHz
14 MHz 250 kHz
12 MHz 500 kHz

Megahertz to Kilohertz Table
1 to 100000

Megahertz Kilohertz Actions
1 MHz 1000 kHz
2 12 MHz 2500 kHz
5 MHz 5000 kHz
10 MHz 10000 kHz
25 MHz 25000 kHz
50 MHz 50000 kHz
100 MHz 100000 kHz
250 MHz 250000 kHz
500 MHz 500000 kHz
1000 MHz 1000000 kHz
2500 MHz 2500000 kHz
5000 MHz 5000000 kHz
10000 MHz 10000000 kHz
25000 MHz 2.5 × 107 kHz
50000 MHz 5 × 107 kHz
100000 MHz 1 × 108 kHz

Kilohertz to Megahertz Table
0.1 to 500

Kilohertz Megahertz Actions
0.1 kHz 0.0001 MHz
14 kHz 0.00025 MHz
12 kHz 0.0005 MHz
1 kHz 0.001 MHz
2 12 kHz 0.0025 MHz
5 kHz 0.005 MHz
10 kHz 0.01 MHz
25 kHz 0.025 MHz
50 kHz 0.05 MHz
100 kHz 0.1 MHz
250 kHz 14 MHz
500 kHz 12 MHz

Kilohertz to Megahertz Table
1000 to 1 × 108

Kilohertz Megahertz Actions
1000 kHz 1 MHz
2500 kHz 2 12 MHz
5000 kHz 5 MHz
10000 kHz 10 MHz
25000 kHz 25 MHz
50000 kHz 50 MHz
100000 kHz 100 MHz
250000 kHz 250 MHz
500000 kHz 500 MHz
1000000 kHz 1000 MHz
2500000 kHz 2500 MHz
5000000 kHz 5000 MHz
10000000 kHz 10000 MHz
2.5 × 107 kHz 25000 MHz
5 × 107 kHz 50000 MHz
1 × 108 kHz 100000 MHz

Definition of Megahertz

Megahertz: Radio and Computing Frequency Unit

The megahertz (symbol: MHz) is a unit of frequency equal to one million hertz (10⁶ Hz). It is the standard unit for describing radio broadcast frequencies, early computer processor speeds, and many wireless communication standards.

Conversions to Other Units of Measurement:

  1. Hertz (Hz): 1 MHz equals exactly 1,000,000 Hz. FM radio stations broadcast in the 87.5-108 MHz range.
  2. Kilohertz (kHz): 1 MHz equals exactly 1,000 kHz. This is used when converting between AM radio (kHz) and FM radio (MHz) frequency bands.
  3. Gigahertz (GHz): 1 MHz equals 0.001 GHz. Modern processors operate in the GHz range, while earlier CPUs were specified in MHz.
  4. Revolutions per Minute (rpm): 1 MHz equals 60,000,000 rpm. While no mechanical device spins this fast, the conversion illustrates the vast difference between electromagnetic and mechanical oscillations.

The megahertz was the primary unit for describing computer processor speeds from the 1970s through the early 2000s before gigahertz became common. It remains widely used for radio frequency engineering.

Definition
SI decimal multiple of hertz; 1 MHz = 1,000,000 Hz = 10⁶ Hz
Common equivalents
  • 1 MHz = 10⁶ Hz (exact)
  • 1 MHz = 1,000 kHz (exact)
  • 1 MHz = 0.001 GHz (exact)
Sources

Definition of Kilohertz

Kilohertz: Audio and Radio Frequency Unit

The kilohertz (symbol: kHz) is a unit of frequency equal to 1,000 hertz. It is widely used in audio engineering, radio communications, and electronics. Human hearing ranges from about 0.02 kHz to 20 kHz, making the kilohertz a natural unit for describing audible frequencies.

Conversions to Other Units of Measurement:

  1. Hertz (Hz): 1 kHz equals exactly 1,000 Hz. AM radio stations in the US broadcast in the 535-1705 kHz range.
  2. Megahertz (MHz): 1 kHz equals 0.001 MHz. This conversion is used when comparing audio frequencies with radio spectrum allocations.
  3. Revolutions per Minute (rpm): 1 kHz equals 60,000 rpm. High-speed turbines and dental drills operate at frequencies in the kilohertz range.
  4. Radians per Second (rad/s): 1 kHz equals approximately 6,283.2 rad/s. Used in signal processing and control systems analysis.

The kilohertz is the standard unit for describing audio sampling rates (44.1 kHz for CD quality, 48 kHz for professional audio) and ultrasonic frequencies used in medical imaging.

Definition
SI decimal multiple of hertz; 1 kHz = 1,000 Hz = 10³ Hz
Common equivalents
  • 1 kHz = 1,000 Hz (exact)
  • 1 kHz = 0.001 MHz (exact)
  • 1 kHz = 60,000 rpm (exact)
Sources

About the Megahertz

Wi-Fi operates primarily in two frequency bands: 2.4 GHz (2,400 MHz) and 5 GHz (5,000 MHz). The 2.4 GHz band offers better range but slower speeds, while 5 GHz provides faster data rates at shorter distances. Newer Wi-Fi 6E adds the 6 GHz band.

The first personal computers in the late 1970s had processors running at just 1-4 MHz. By comparison, a modern smartphone processor runs at 2,000-3,000 MHz — roughly a thousand times faster.

About the Kilohertz

The standard audio CD uses a sampling rate of 44.1 kHz, chosen because it is slightly more than twice the upper limit of human hearing (20 kHz), satisfying the Nyquist-Shannon sampling theorem. Professional audio typically uses 48 kHz or 96 kHz.

AM radio stations broadcast in the kilohertz range (535-1705 kHz in the Americas). The lower frequency allows AM signals to travel much farther than FM, especially at night when they can bounce off the ionosphere.

Frequently Asked Questions

How many kilohertz are in one megahertz?

One megahertz equals 1000 kilohertz. To convert, multiply the megahertz value by 1000. For the reverse, divide the kilohertz value by 1000 (or multiply by 0.001).

What is 10 megahertz in kilohertz?

10 megahertz = 10000 kilohertz. This is one of the most commonly searched conversions for this pair.

Is the megahertz-to-kilohertz conversion exact?

Yes. The factor 1000 is exact by international definition, not an approximation. Any imprecision comes only from the original measurement, not the conversion.

Looking for the reverse? Convert Kilohertz to Megahertz

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Conversion factors verified against NIST, BIPM, ISO 80000-3 1 Hz = 1/s by definition (SI, BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.

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