Select the country you are from to see if you need a power plug adapter when travelling to Guam.
Guam electrical outlets & plugs
Guam uses power outlets and plugs of types A & B. Take a look at the pictures below to see what these plugs and power sockets look like:
Do the outlets look different in your country? You'll need a power plug adapter.
Click for adapter Guam
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Type A - Mostly used in the US, Canada, Mexico, Central America, China and Japan. No other plug types will fit in a type A outlet.
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Type B - Similar to type A, but with an extra pin for grounding. Mainly used in the US, Canada, Mexico, Central America and Japan. Plugs of type A will also fit into a type B socket.
Electricity in Guam - voltage and frequency
All power sockets in Guam provide a standard voltage of 110V with a standard frequency of 60Hz.
You can use all your equipment in Guam if the outlet voltage in your own country is between 100V-127V. This is mostly the case in the US, Canada and countries in South America.
The standard frequency in Guam is 60Hz. If this frequency differs from the frequency used in your home country, please use caution when plugging in your devices. Check the small print on the device to see if the device can handle the frequency. Please note we regularly check our electricity information with the International Electrotechnical Committee (IEC)
Small print on the device or power adapter indicates what voltages the device can work with. If you see 100-240V 50/60Hz printed, the adapter is rated to work on all voltages used worldwide. Please note that power plug adapters only convert plug types and do not convert voltages.
Our recommended adapters
Frequently asked questions
What power plug types and electrical outlets are used in Guam? ⌄
What voltage is used in Guam? ⌄
The standard voltage in Guam is 110V at a frequency of 60Hz.
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