Need to convert frequency from one unit to another? Our free Frequency Converter makes it quick and easy. Enter a frequency value, choose the unit you are converting from and the unit you want, and get the converted result instantly. It supports common frequency units such as hertz, kilohertz, megahertz, gigahertz, and revolutions per minute. It is useful for electronics, electricity, computers, audio, engineering, science, and everyday calculations.
What Is Frequency?
Frequency describes how many times a repeating event occurs in one second. It is measured in hertz (Hz). For example, a frequency of 50 Hz means that something repeats 50 times per second.
Frequency is used in many areas, including electricity, electronics, sound, radio communication, computers, machinery, and science.
Common Frequency Units
Hertz (Hz)
Hertz is the standard unit of frequency. One hertz means one cycle or event per second.
Kilohertz (kHz)
One kilohertz equals 1,000 hertz. It is commonly used for audio signals, electronic circuits, and radio frequencies.
1 kHz = 1,000 Hz
Megahertz (MHz)
One megahertz equals 1,000,000 hertz. MHz is commonly used for radio frequencies, processors, and electronic equipment.
1 MHz = 1,000,000 Hz
Gigahertz (GHz)
One gigahertz equals 1,000,000,000 hertz. GHz is often used for wireless communication and computer processor speeds.
1 GHz = 1,000,000,000 Hz
Millihertz (mHz)
One millihertz is one-thousandth of a hertz.
1 mHz = 0.001 Hz
Revolutions Per Minute (RPM)
RPM means revolutions per minute. It is commonly used to describe the rotational speed of motors, engines, fans, hard drives, and other rotating equipment.
For a repeating rotation:
1 Hz = 60 RPM
How to Use the Frequency Converter
- Enter the frequency value.
- Select the unit you are converting from.
- Select the unit you want to convert to.
- Click Convert.
- The converted value will appear instantly.
You can use decimal values as well as numbers containing commas.
Common Frequency Conversions
Some useful relationships include:
- 1 kHz = 1,000 Hz
- 1 MHz = 1,000 kHz
- 1 GHz = 1,000 MHz
- 1 Hz = 1,000 mHz
- 1 Hz = 60 RPM
- 60 RPM = 1 Hz
For example, if you convert 2 MHz to kHz, the result is 2,000 kHz.
Where Is Frequency Used?
Frequency is an important measurement in many everyday and technical applications.
- Electricity: AC power systems use a specific frequency, such as 50 Hz or 60 Hz.
- Audio: Sound frequencies are measured in hertz.
- Radio: Radio signals are commonly expressed in kHz, MHz, or GHz.
- Computers: Processor and other electronic speeds are often described in GHz.
- Motors: Rotational speed can be expressed in RPM.
- Science and engineering: Frequency is used to describe waves, vibrations, oscillations, and repeating events.
Frequency vs. RPM
Frequency and RPM are related, but they measure repetition differently. Hertz measures cycles per second, while RPM measures revolutions per minute.
For example:
120 RPM = 2 revolutions per second = 2 Hz
This relationship is useful when converting between rotational speed and frequency.
Frequently Asked Questions
What is 1 kHz in Hz?
1 kHz is equal to 1,000 Hz.
What is 1 MHz in Hz?
1 MHz is equal to 1,000,000 Hz.
What is 1 GHz in Hz?
1 GHz is equal to 1,000,000,000 Hz.
How many RPM is 1 Hz?
1 Hz is equal to 60 RPM when one revolution represents one cycle.
Can I enter decimal values?
Yes. The converter accepts decimal frequency values such as 2.5, 10.75, and 0.125.
What is the difference between Hz and RPM?
Hz measures cycles per second, while RPM measures revolutions per minute. They can be converted when the repeating event is a rotation.
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