This page is written for people that are from American Samoa. Click here if you are from another country

Select the country you are from to see if you need a power plug adapter when travelling to Guam.

American Samoa to Guam

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You need a power plug adapter in Guam when you are from American Samoa.

You don't need a voltage converter to use your devices in Guam.

Here's why you need an adapter

The outlets and plugs used in Guam are A & B. Take a look at the pictures below to see what each plug and socket type looks like:

Guam electrical outlets and plug types

However, the outlets and plugs used in American Samoa are A, B, F & I, so that is why you need an adapter:

American Samoa electrical outlets and plug types

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Here's why you don't need a voltage converter

Guam uses a voltage of 110V and a frequency of 60Hz. This is the same as in American Samoa, so you don't need a voltage converter.

Our recommended adapters

Universal adapter

Universal power plug adapter
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Adapter + Converter

Combined converter and adapter
Click for converter Guam
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Frequently asked questions

In Guam they use power plugs and electrical outlets of types A & B.

Guam electrical outlets and plug types

The standard voltage in Guam is 110V at a frequency of 60Hz.