Frequency Converter

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   What’s great about our Frequency Converter

   Fast, accurate conversion of frequencies that you can see and drag

   • Free
   • Converts hertz, kilohertz, megahertz and gigahertz instantly
   • Synced sliders and type-in boxes
   • No sign-up
   • No ads
   • Works offline once loaded
   • No daily limit
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   Choose which units to show

   Use the unit names at the top to show or hide each card. Drag a name or a card’s title to rearrange them; your order is remembered in this browser, and Restore puts the original order back.

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   Drag a slider or type a value

   Move any slider, or type a number into its “Type Value” box, and every visible unit updates instantly. The sliders are logarithmic, so each step along a slider multiplies the value, and one slider covers very small to very large amounts.

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   Widen the range

   Turn on “Wider Range” to widen every slider’s range to cover more extreme values.

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What is Frequency?

Frequency is how many times something repeats each second, measured in hertz. Sound pitch, radio stations, Wi-Fi and processor speeds are all frequencies. This converter moves between hertz, kilohertz, megahertz and gigahertz.

About Hertz (Hz)

The hertz is the SI unit of frequency: one cycle per second. It is named after the German physicist Heinrich Hertz.

• 1 Hz = 1 cycle per second
• Humans hear roughly 20 Hz to 20,000 Hz
• Mains electricity is 50 Hz in most of the world and 60 Hz in the Americas and parts of Asia

About Kilohertz (kHz)

A kilohertz is 1,000 hertz, used for audio frequencies and AM radio.

• 1 kHz = 1,000 Hz
• Audio CDs sample sound at 44.1 kHz
• AM radio stations broadcast at hundreds of kHz

About Megahertz (MHz)

A megahertz is 1,000,000 hertz, used for FM radio, television and many electronic circuits.

• 1 MHz = 1,000 kHz
• FM radio broadcasts between about 87.5 and 108 MHz
• Early personal computers ran at a few MHz

About Gigahertz (GHz)

A gigahertz is 1,000,000,000 hertz. It is the unit for processor speeds, Wi-Fi and mobile networks.

• 1 GHz = 1,000 MHz
• Modern processors run at roughly 2 to 5 GHz
• Wi-Fi uses the 2.4, 5 and 6 GHz bands, and microwave ovens run at 2.45 GHz