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No adapter needed

Do I need a travel adapter for a trip to Guam?

No, you do not need a travel adapter (plug adapter) for a trip from the United States to Guam. In Guam, people are using the same plugs and electrical outlets as in the United States.

Guam und United States compared
Flag: United States
United States
AOutlets of type ABOutlets of type BOutlets
120 VoltVoltage
60 HertzFrequency
Flag: Guam
Guam
AOutlets of type ABOutlets of type BOutlets
110 VoltVoltage
60 HertzFrequency
The best travel adapters

Looking for a travel adapter for your upcoming trips? We have taken a close look at all the best adapters, and these are our favorite models:

Recommended
A powerful travel adapter suitable for trips all around the world
A powerful travel adapter suitable for trips all around the world
USB charger included
Versatile adapter including USB ports to top up your smartphone's battery
Versatile adapter including USB ports to top up your smartphone's battery
Country information

About Guam

Flag: About Guam

Guam is a country in Oceania (Micronesia) with about 162 000 inhabitants on an area of almost 544 km². The capital of Guam is Hagåtña (1 000 inhabitants).

People in the country are mainly speaking English and Chamorro.

Guam does not have a neighbor country.

TLD: .guCurrency: USDCountry calling code: +1-671Country Code : GU
Power sockets

Which types of electrical outlets are used in Guam?

Guam uses electrical outlets of type A and B. As these are the same types of plugs used in the United States, you do not need a travel adapter in Guam.

Mains voltage

What is the Electricity Voltage in Guam?

The voltage in Guam is 110 volts.

The voltage, therefore, is lower than the 120 volts in the United States. This difference means that you have to be cautious when using electrical devices purchased in the United States:

You should read the instruction manual of your device and check at which voltage it is safe to use.

If the voltage stated in the user's manual or on the device's power supply differs from the mains voltage in Guam, you should either not use your device there, or buy a voltage converter before departing.

Utility frequency

What is the utility frequency in Guam?

The utility frequency in Guam is 60 Hertz.

The frequency, therefore, is the same as in the United States. That's why it is safe to use all your electric appliances in Guam.

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