Fully compatible — no adapter needed
United States of America: Type A/B · 120V → Japan: Type A/B · 100V
The specs, row by row.
Plug shape, voltage, frequency — the four things that decide whether your gear works on this route.
The story behind the route.
Why this specific origin → destination pair has the quirks it does — local context the data alone won't show.
Traveling from United States of America to Japan means crossing more than just time zones. You're entering a completely different electrical ecosystem. You'll catch a break with plugs: Type A/B works in both United States of America and Japan. The 20 volt difference between United States of America (120V) and Japan (100V) is minor. Most electronics auto-adjust. Temperature measured in Celsius (°C). A little preparation goes a long way on this route.
- →Uses 24H time format (e.g., 23:00)
- →Temperature measured in Celsius (°C)
- →Electrical system uses 100V at 50Hz with Type A/B plugs
- →Tap water safety: drinkable
- →Japanese hotels typically have only 1-2 outlets per room. Pack a power strip.
What to pack for this route.
One adapter for the plug shape, one converter when voltage bands cross. That covers most of what you need.
United States of America and Japan use compatible plugs and voltages.
Every adapter, charger, and travel-safe device we've curated.
The four partners we travel with.
eSIM for landing-day data, VPN for hotel WiFi, insurance for the gear, and a clean airport pickup in Japan.
Saily eSIM
Activate before you fly so you have data the moment you land in Japan. No SIM-card hunt at the airport.
NordVPN
Hotel and café WiFi is open and shared. NordVPN encrypts everything — banking, streaming, work — so no one on the same network can snoop.
Ekta Travel Insurance
Cross-border trips have moving parts. Ekta covers electronics, medical, and trip cancellation for Japan.
Welcome Pickups
Skip the taxi-line negotiation in Japan. English-speaking driver waits at arrivals with your name on a sign — fixed price.
Related routes, worth a look.
Same origin, same destination, or both — the routes most likely to be relevant if this one is.