Gear & packingBy Clever Tourists · Published
Thailand uses 230 volts at 50Hz, with sockets listed as Types A, B, C and O, and many take both flat and round pins. US and Canadian visitors can often plug in flat-pin devices but must check the voltage; UK, Australian and most European visitors need an adapter or a universal one. Chargers marked 100-240V work fine. We were in Thailand from December 2022 to January 2023, from Bangkok to the Andaman coast, and the sockets you meet range from modern multi-standard outlets to older ones in guesthouses and bungalows.
WorldStandards lists Thai sockets as Types A, B, C and O at 230V and 50Hz. Type A is two flat pins and Type B adds a round earth pin. Type C is the two-round-pin Europlug. Type O is Thailand's own grounded three-pin standard. In practice, many Thai sockets are multi-standard, accepting both flat and round pins, which is why a universal adapter covers it.
Do not assume every socket takes every plug. Older or cheaper sockets in guesthouses and island bungalows may fit only one shape or hold plugs loosely, so carry an adapter that grips firmly.
• USA, Canada: Type A and B plugs often fit, but the voltage is 230V, not 120V. Chargers rated 100-240V are fine. Hair dryers and curling tools rated 120V only will fail.
• UK, Ireland: Type G does not fit. You need an adapter.
• Europe: Type C and F plugs often fit, thanks to multi-standard sockets, but carry an adapter in case.
• Australia, New Zealand: Type I does not fit. You need an adapter.
• Japan: Type A plugs often fit, but Japan is 100V and Thailand is 230V, so check your devices.
Phones, laptops, tablets, cameras, e-readers and power banks all charge from 100-240V chargers. Look at the small print on the brick. A converter is only needed for devices that do not accept 230V. A 120V-only hair dryer plugged into a 230V socket via an adapter can overheat or be destroyed.
Most hotels supply a dryer. If you rely on a particular travel straightener, check that it is dual voltage. Our Thailand packing list covers what else to bring.
Do not count on a socket at every seat. Some long-distance buses and trains have outlets, but we cannot promise yours will, so charge before leaving and carry a power bank. On boat days at Ao Nang or in the north around Mae Hong Son, there may be no socket for hours. Carry the power bank in carry-on luggage, never checked baggage. Airlines have rules about power banks on board; check yours before you fly.
In rural guesthouses, power cuts can happen, and a head torch and a charged bank are worth carrying.
Many Thai guesthouses have few sockets near the bed. A small travel extension strip or a multi-port USB charger helps, but check it is rated for 230V. Avoid cheap uncertified strips, which can overheat. A single GaN USB-C charger with three ports charges a phone, camera and laptop from one socket.
Electronics shops in malls and airport shops sell adapters and USB chargers. Prices vary, and airport shops charge more. Buying a universal adapter before you travel is simple and cheap. Our Thailand things to know page covers other everyday basics, and the cash or card in Thailand guide explains how to pay.
See our overview, power plugs by country, and the Japan plug guide if you are continuing there. If you are planning a route, our six-week Thailand route shows where we went, and can you drink tap water in Thailand covers the other practical question.
• Assuming a US plug means US voltage. The plug may fit, but Thai power is 230V. A 120V-only hair dryer will fail.
• Using cheap multi-plugs. Very cheap adapters can loosen in older sockets and overheat.
• Charging only at night. If you are on a long day of island hopping or trekking, top up a power bank in the morning.
• Leaving chargers behind. Hostels, guesthouses and bungalows are the places where chargers get left in sockets. Check before you check out.
• Forgetting the earth pin. Laptop chargers with three-pin plugs can be awkward in a two-pin adapter, so check which plug your charger actually has.
One universal adapter, one multi-port USB-C charger, one short cable per device and a power bank covers a Thailand trip for most people. Add a small pouch so cables do not tangle. Keep the power bank in your cabin bag for flights, and leave hair tools that are 120V-only at home. In the rainy season, keep chargers and power banks in a dry bag on boat days, and wipe sockets dry before plugging in. For the rest of the packing list, see our Thailand packing list.
Thailand uses Types A, B, C and O at 230V and 50Hz, and many sockets accept both flat and round pins.
Often your plug will fit, but the voltage is 230V. Chargers rated 100-240V work; 120V-only appliances do not.
Yes. Type G and Type I plugs do not fit Thai sockets, so bring an adapter.
Only for devices that cannot take 230V, such as 120V-only hair tools. Phone and laptop chargers marked 100-240V do not need one.
Yes, at electronics shops, malls and airports, but it is cheaper to bring a universal adapter.
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