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Frequency Converter

Convert any frequency between hertz multiples and revolutions per minute.

From

To

Result
1,000,000Hz
1 MHz =
Hertz1,000,000 Hz
Kilohertz1,000 kHz
Gigahertz0.001 GHz
Terahertz0.000001 THz
Revolutions per minute60,000,000 rpm

About this calculator

Frequency counts how many times an event repeats per second, measured in hertz (Hz). Radio, audio and computing use kilohertz, megahertz, gigahertz and terahertz to express the enormous range of frequencies, while rotating machinery is often rated in revolutions per minute (rpm).

This converter uses the hertz as its base unit. One kilohertz equals 1000 Hz, one megahertz equals one million Hz, and one rpm equals 1/60 Hz (since 60 revolutions per minute is one per second). It is useful for electronics, audio and mechanical work.

Frequently asked questions

One megahertz equals 1,000,000 hertz.

Divide revolutions per minute by 60 to get hertz, since one hertz equals 60 rpm.

Each step is a factor of 1000: 1 GHz = 1000 MHz = 1,000,000 kHz = 1,000,000,000 Hz.

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