What is the standard voltage for household outlets in most countries?

The standard voltage for household outlets varies by country, but in many regions, particularly in North America, 120 volts is the common standard. This means that most residential electrical systems are designed to operate at this voltage, providing power for a wide range of household appliances and electronic devices. Using 120 volts ensures compatibility with the wiring and devices that are manufactured for these electrical specifications.

In contrast, many other countries use a higher voltage standard, such as 220 or 240 volts. These voltage levels are more prevalent in Europe and parts of Asia and Africa, where the electrical infrastructure is designed accordingly. The utilization of different voltages is primarily based on historical development, safety standards, and efficiency criteria. While options like 100 volts are less commonly used and pertain to specific applications, the predominant household voltage of 120 volts is crucial for the functioning and safety of various consumer electronics and appliances in the regions that employ this standard.