Plug adapter for Thailand from the United States
What travellers from the United States need to charge and power their devices in Thailand: plugs, voltage and frequency, with the rest of the trip basics below.
Plug adapter
Needed for some plugs
Your Type A plugs fit. For Type B plugs, bring an adapter to Types A and C.
Voltage
Higher: 230 V
The United States 120 V → Thailand 230 V. Devices made for 110–120 V only need a step-down converter.
Frequency
Different
60 Hz → 50 Hz. Chargers don't mind; mains-timed clocks and some motors may run fast or slow.
Your plug, their socket
It does fit the Type B sockets also found in Thailand, but you can't count on finding one.
In Thailand: Most sockets are combined sockets that accept Type A and Type C plugs; newer buildings use the Thai Type O socket. Supply is 230 V, so US devices that are not dual-voltage need a converter even though the plug fits.
Your devices in Thailand
Look for the “INPUT” line on the charger or label. A range such as 100–240V ~ 50/60Hz means the device adapts by itself and needs only a plug adapter.
| Device | Usually | In Thailand |
|---|---|---|
| Phone, tablet and laptop chargers | 100–240 V | Plug adapter only |
| Camera and power-bank chargers, e-readers | 100–240 V | Plug adapter only |
| Electric shavers, toothbrushes | often 100–240 V; check | Check the label: single-voltage ones need a converter |
| Hair dryers, straighteners, curling irons | single voltage | Will burn out on 230 V: buy a dual-voltage model or use the hotel's |
| Kettles, irons, travel cookers | single voltage, high power | Leave at home: converters for these are heavy and costly |
| Plug-in clocks, timers, some fans | 60 Hz | May run fast or slow on 50 Hz |
A plug adapter does not change voltage. Plugging a 120 V-only appliance into 230 V through an adapter will destroy it within seconds and can start a fire.
The rest of the trip basics
- Time
- Thailand is 12 h ahead of the United States right now (UTC+7 vs UTC−5, capitals).
- Money
- The Thai Baht (THB): 1 USD = 33.73 THB (ECB reference rates, 2026-10-30). Everyday prices are about 32% of the United States'.
- Driving
- Switch sides: Thailand drives on the left (the United States drives on the right). Look right first when crossing.
- Advisories
- US: Level 1 Exercise normal precautions. UK: FCDO advises against all but essential travel to parts of the country. Details
- Next holidays
- 5 Dec HM King Bhumibol Adulyadej the Great's Birthday · 5 Dec National Day · 5 Dec National Father's Day All 30
- Calling code
- +66