Most countries use 50Hz (50 Hertz or 50 cycles per second) as their AC frequency. Only a handful use 60Hz. The standard in the United States is 120V and 60Hz AC electricity. … Listing per country. CountryVoltageFrequencyBelgium230V50HzBelize110/220V60HzBenin220V50HzBermuda120V60HzList of Worldwide AC Voltages and Frequencies – School for Champions www.school-for-champions.com › science › ac_world_volt_freq_list