Check voltage, frequency, and plug types for 60+ countries. Enter your device's voltage and know instantly — adapter, converter, or nothing at all.
There are 15 standardized plug types. A plug adapter only changes the physical shape — it does NOT change voltage.
Browse all countries. The "vs. US" column shows what a US traveler needs. Click any column to sort.
| Country ↕ | Voltage ↕ | Hz ↕ | Plugs | vs. US |
|---|
Most modern electronics are dual-voltage and work anywhere. Heating appliances are almost always single-voltage and need a converter.
Everything travelers ask about voltage, adapters, and converters.