SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/eng-grid-50-60-hz

North America's grid runs at 60 Hz. What frequency does Europe's grid use?

50 Hz; parts of Japan use 60 Hz like North America.

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  1. 50 Hz ✔
  2. 60 Hz, the same
  3. 100 Hz

Why: Early power companies settled on different standards. Europe standardized on 50 Hz, North America on 60 Hz. Japan is split, using both.

Huh, didn't know that: Devices with plain AC motors or clocks timed by the grid run slower on 50 Hz than on 60 Hz.

The dad joke
My American clock went to Europe and lost 10 hertz of its personality.
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References

Answer: 50 Hz. Early power companies settled on different standards. Europe standardized on 50 Hz, North America on 60 Hz. Japan is split, using both.

  1. Swissgrid, Frequency www.swissgrid.ch/en/home/operation/regulation/frequency.html
    In North America and parts of Japan, on the other hand, a standard frequency of 60 Hertz is used.
    Checked 2026-10-10.

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