Plug Type and Travel Adapter Guide for Guam

Plug types used in Guam

Guam uses 2 plug types: Type A and B. Of these, Type A and B are not used in India, so you'll need a travel adapter for those sockets.

Type A

Type A: Features two parallel, flat pins.

Type B

Type B: Includes two flat pins and one round grounding pin.

Main Voltage in Guam

Do I Need a Voltage Converter in Guam?

Guam runs on a main voltage of 110 volts at a frequency of 60 Hz, significantly lower than India's 230V/50Hz. This matters: any single-voltage Indian appliance (typical hair dryers, straighteners, immersion rods, electric kettles) will not run properly at 110V and may not heat up at all. To use them safely, you would need a step-up voltage converter. Dual-voltage devices like almost all phone chargers, laptop adapters and modern cameras are unaffected and only need a plug adapter.

Will my Indian charger work in Guam?

Your charger will work, but only with a plug adapter. Guam uses Type A and B sockets at 110V/60Hz. Your Indian phone and laptop chargers are dual-voltage (the label reads 100–240V), so they handle Guam voltage without any issue. The only question is plug shape — your Indian plug will not fit Type A and B sockets at all, so you must carry a travel adapter. Your charger is dual-voltage and handles 110V safely, but single-voltage devices like hair dryers will not work.