Guam power plugs and voltage
You will need a travel adapter
Guam uses Type A and Type B sockets at 110 V / 60 Hz. Pick the country you are travelling from to see exactly what you need.
- Plug types
- A / B 2 socket types in use
- Voltage
- 110 V Low-voltage grid (100–127 V)
- Frequency
- 60 Hz 60 Hz — Americas, parts of Asia
- National standard
- NEMA 1-15, NEMA 5-15 Grid reliability: Good
Where your plug will also work
All countries →These countries use at least one of the same socket types as Guam, so an adapter bought for this trip often works there too.
What the sockets look like
Power in Guam
Guam, a U.S. Guam uses Type A and Type B power plugs. The standard voltage is 110 V and the supply frequency is 60 Hz. electrical standards. Major power generation sources include diesel and an increasing share of renewables like solar and wind. The power grid in Guam is generally reliable, though it can face challenges during typhoon season. Efforts are underway to enhance the grid's resilience and reduce dependence on imported fossil fuels. Overall, Guam's power infrastructure supports its residents and critical industries effectively.
Recommended gear
Adapters & converters →
EPICKA 75 W GaN universal travel adapter
One block that covers US, UK, EU and Australian sockets, with 75 W of USB-C charging — enough for a laptop without carrying its power brick.
- Plugs for US / UK / EU / AU sockets
- 3× USB-C (75 W total) + 2× USB-A
- Universal AC socket, fused, up to 2000 W
- About 250 g
It does not convert voltage. A 120 V appliance still gets 230 V in Europe, whatever adapter you use.
Best for: Phones, laptops, cameras, tablets and anything dual-voltage.
Check price on AmazonOn a budget? A single-purpose adapter for Guam sockets costs a fraction of the universal block — it does the same job, but only for this one socket type.
Fits American and Japanese flat-pin sockets. For visitors from Europe, the UK, Australia or India.
Check price on Amazon ↗As an Amazon Associate we earn from qualifying purchases. Links below are affiliate links — they cost you nothing extra and never change what we recommend.