📡 Frequency converter

Frequency Converter

Convert any frequency unit to all others at once — Hz, kHz, MHz, GHz, rpm.

Results

Hertz (Hz)
1 Hz
Kilohertz (kHz)
0.001 kHz
Megahertz (MHz)
0.000001 MHz
Gigahertz (GHz)
1e-9 GHz
RPM (rpm)
60 rpm

📊 Frequency Converter chart

Conversion line — plotted against input value.

What is the Frequency Converter?

Convert any frequency unit to all others at once — Hz, kHz, MHz, GHz, rpm. Frequency describes how often something repeats each second, measured in hertz, kilohertz, megahertz, gigahertz or revolutions per minute.

Frequency Converter – free online frequency tool illustration
Frequency Converter — free, exact and private.

How to use the Frequency Converter

  1. Enter your value, your from unit.
  2. Results update automatically as you type; you can also press Calculate.
  3. Read the output: hertz (hz), kilohertz (khz), megahertz (mhz), gigahertz (ghz).
  4. Check the chart to see how the conversion scales.

Formula and method

value in target = value × (factor of source ÷ factor of target)

Worked example

With value = 1, from unit = Hertz (Hz), the Frequency Converter returns hertz (hz): 1 Hz; kilohertz (khz): 0.001 kHz; megahertz (mhz): 0.000001 MHz.

When an all-in-one frequency converter helps

A radio enthusiast tunes older equipment that shows kilohertz, while the station is listed as 98.7 MHz. Converting gives 98,700 kHz.

A mechanic compares an engine running at 3,000 RPM with a vibration measured in hertz. Converting gives 50 Hz, which matches the vibration and points to the cause.

Watch out for these mix-ups

  • Confusing RPM with radians per second.
  • Mixing MHz and GHz.
  • Ignoring period versus frequency.
  • Rounding high frequencies too much.
Illustration: a measurement workbench for frequency conversions with a laptop showing a chart
Frequency Converter in everyday work — illustration.

Tips for better results

  • Divide RPM by 60 for hertz.
  • Use scientific notation for very high frequencies.
  • Check device specifications.

💡 Practical tip: Divide RPM by 60 to get hertz — 1,000 RPM is about 16.7 Hz.

Frequently asked questions

What does the Frequency Converter do?

Convert any frequency unit to all others at once — Hz, kHz, MHz, GHz, rpm.

How is it calculated?

The Frequency Converter uses this method: value in target = value × (factor of source ÷ factor of target).

Can you show an example?

With value = 1, from unit = Hertz (Hz), the Frequency Converter returns hertz (hz): 1 Hz; kilohertz (khz): 0.001 kHz; megahertz (mhz): 0.000001 MHz.

Is the Frequency Converter accurate?

Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.

Is this tool free and private?

Yes — the Frequency Converter is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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