Things worth knowing before you go.
Quick facts to keep in your back pocket — currency, language, the time difference, which side of the road they drive on.
Are your devices safe? Run the check.
United States of America runs at 120V / 60Hz. Find out which of your devices plug in safely and which need a converter — before you pack.
Every plug type, in one place. All 15.
Type A through Type O — what they look like, where they're used, which countries share them. The full reference our visitors come back to most.
What every traveler should pack — and why.
Four picks for any international trip — what they actually do, and the moments where they pay for themselves.
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Everything we'd actually pack.
Curated Amazon lists, organized by what you actually need at each phase of the trip — from packing the suitcase to landing in a new country.
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The plug used in United States of America.
Hawaii and some older East Coast buildings may have different outlet configurations or voltage variations. US territories like Puerto Rico and Guam follow the same 120V standard, while some military bases overseas maintain US electrical systems.
Full Type A guide →Other places that use Type A.
Power adapter guides for routes to and from United States of America.
Country-to-country guides with the exact adapter, voltage, and packing tips for each route.
What type of power plug is used in United States of America?+
United States of America uses Type A and Type B power plugs and electrical outlets. The standard voltage is 120V with a frequency of 60Hz.
Do I need a travel adapter for United States of America?+
United States of America uses plug types that may be compatible with your devices, but carrying a universal travel adapter is still recommended for convenience.
Do I need a voltage converter for United States of America?+
United States of America's 120V is compatible with devices rated for the 100-127V range. If you're coming from a country in a different voltage zone, check your device labels. Single-voltage appliances may need a converter.
Can I charge my iPhone or Android phone in United States of America?+
Yes. All modern smartphone chargers (including iPhone and Android USB chargers) are dual-voltage (100-240V) and work in United States of America. You only need a plug adapter to fit the Type A/B outlets.
Can I use my laptop charger in United States of America?+
Yes. Laptop chargers from Apple, Dell, HP, Lenovo, and other major brands are universal (100-240V). You only need a Type A/B plug adapter for United States of America.
What is the emergency phone number in United States of America?+
The emergency phone number in United States of America is 911. Save this number in your phone before your trip.