What is the standard AC Voltage for the U.S.?

The standard AC voltage for residential and most commercial uses in the United States is 120 volts. This voltage is commonly used for a wide range of appliances and electrical devices, including lighting and small electronics. The U.S. power grid delivers this voltage to ensure compatibility with the electrical systems in most homes and businesses.

While some devices might operate at different voltages—such as 240 volts for heavy-duty appliances like dryers and ovens—the most commonly encountered voltage in everyday use is indeed 120 volts. This standardization helps ensure safety and consistency across a variety of electrical appliances.