Oceania · plug & voltage guide
Guam plug type and voltage
Guam uses Types A and B outlets at 110 V and 60 Hz. U.S. plugs fit the outlets in Guam.
Verified Oct 17, 2026By Steven MoHow we check Report a correction
All are used; check your hotel
U.S. outlets: 120 V
U.S.: 60 Hz
No converter needed
Quick answer
Guam uses Types A and B at 110 V. U.S. plugs fit the outlets in Guam. Guam uses 110 V, the same as the United States.
- Plug types
- Type A, Type B
- Voltage and frequency
- 110 V, 60 Hz
- Adapter from the U.S.
- No adapter needed
- Converter
- No converter needed
Do I need a plug adapter?
- Plugs
- Types A and B
- Voltage
- 110 V
- Frequency
- 60 Hz
U.S. plugs fit the outlets in Guam.
Guam uses 110 V, the same as the United States.
The outlets you'll find in Guam
Type A
Two flat parallel pins
Not grounded · also used in U.S., Canada, Mexico, Japan
Type B
Two flat pins and a round grounding pin
Grounded · also used in U.S., Canada, Mexico
What to pack for Guam
- No plug adapter: your U.S. plugs fit.
- A small U.S. power strip, so one outlet charges everything.
Check the label first
Look for the input line on your charger or device. INPUT: 100–240V means it works anywhere with just a plug adapter. A single number such as 120V means it only works at that voltage.
Plugs in other Oceania destinations
- American SamoaA, B · 120 VNo adapter
- AustraliaI · 230 VType I
- Cook IslandsI · 240 VType I
- FijiI · 240 VType I
- French PolynesiaA, B, C, E, F · 110 V or 220 VSometimes Type C
- KiribatiI · 230 VType I
- MicronesiaA, B · 120 VNo adapter
- NauruI · 240 VType I
- New CaledoniaC, F · 220 VType C
- New ZealandI · 230 VType I
- NiueI · 230 VType I
- PalauA, B · 120 VNo adapter
- Papua New GuineaI · 240 VType I
- Pitcairn IslandsI · 230 VType I
- SamoaI · 230 VType I
- Solomon IslandsI · 230 VType I
- TongaI · 230 VType I
- TuvaluI · 230 VType I
- VanuatuI · 230 VType I
Guam plug FAQ
Guam uses Types A and B.
Sources
Last verified Oct 17, 2026. Plug types and voltages rarely change, but hotels sometimes have older or international outlets.
- IEC: World Plugs, plug types and voltages by country
- Wikipedia: Mains electricity by country (compiled from IEC data)
Read how we collect and check this data, or tell us if something's out of date.
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