Conversions Conversion Chart

Frequency Conversion Chart

Published September 8, 2026

Conversion factors for frequency units, plus the formula linking frequency and period. For the reasoning behind these numbers, see Understanding Frequency.

Frequency (Hz) = 1 ÷ Period (seconds)
Period (s) = 1 ÷ Frequency (Hz)

Frequency Unit Conversions

Unit Equivalent in Hz
1 kilohertz (kHz) 1,000 Hz
1 megahertz (MHz) 1,000,000 Hz / 1,000 kHz
1 gigahertz (GHz) 1,000,000,000 Hz / 1,000 MHz

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Frequently Asked Questions

How does frequency relate to period?

They’re inverses of each other. A higher frequency means a shorter period between cycles, and vice versa.

What frequency is standard AC power?

Most countries use either 50 Hz or 60 Hz for household AC power, 60 Hz in North America and most of the Americas, 50 Hz across most of the rest of the world.

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