Thailand Travel Adapters
Type A, Type B, Type C, and Type O • 230 volts • 50 Hz
Thailand wasn't always called Thailand. The kingdom was known internationally as Siam until June 23, 1939, when the government of Prime Minister Plaek Phibunsongkhram renamed it, timing the change to the seventh anniversary of the 1932 revolution that ended absolute monarchy and framing it as a nationalist rebrand under the slogan "Thailand for the Thai." The country reverted to the name Siam from 1945 to 1949 as part of the postwar peace settlement before Phibun restored the name Thailand for good. "Thai" translates to "free," so the name is sometimes rendered "land of the free."
Thailand is a country in Southeast Asia. The capital city is Bangkok, and the country is known for its tropical beaches, temples, and vibrant culture. Popular attractions include the Grand Palace in Bangkok, the beaches of Phuket, and the ancient city of Ayutthaya. Thailand offers a mix of cultural landmarks, natural landscapes, and urban experiences.
Thailand uses mains electricity supplied at 230 volts at 50 Hz. Wall outlets use Type A, Type B, Type C, and Type O plugs. Travelers from regions that use different plug types should bring a compatible travel adapter. Visitors should confirm that their electronic devices support 100–240V input or use an appropriate voltage converter if necessary.
What Plug Type Does Thailand Use?
Click image for adapter details
Adapter may also be spelled adaptor. Converter may be spelled convertor. Grounded may also be described as earthed.
Thailand uses Type A, Type B, Type C, and Type O outlets. Most outlets sold today are hybrid sockets built to accept all four plug types, though Type O is the official Thai standard and long-term plans call for phasing out compatibility with Type A and Type B. No plug type is excluded due to limited or declining use.
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Do I need a voltage converter for Thailand?
Only if your device isn't dual voltage. Most phones, laptops, and cameras are rated for 100–240V and only need a plug adapter for Thailand's outlets. High-wattage single-voltage appliances, like hair dryers, straighteners, or some CPAP machines, need a voltage converter, not just an adapter. Check the device label for its voltage rating before you travel.
Can I use my US phone charger in Thailand?
Most modern phone and laptop chargers are rated for 100–240V, so they work on Thailand's 230V supply without a separate converter. You may not even need a plug adapter: Thailand's outlets are commonly hybrid sockets built to accept US Type A and Type B plugs directly, alongside Type C and Type O.
Are Thailand and US power outlets interchangeable?
Mostly, yes, which is unusual. Thailand's outlets are commonly hybrid sockets that accept US Type A and Type B plugs directly alongside Thailand's own Type C and Type O standards, so a US plug will often fit without an adapter. The voltage is not interchangeable, though: Thailand runs at 230V compared to 120V in the US, so only devices that already support both voltages are safe to plug in without a converter.
Does Thailand use more than one plug type?
Yes. Thailand uses four plug types: Type A and Type B, the flat-pin American styles; Type C, a two round-pin Europlug; and Type O, Thailand's own three-pin grounded standard. Most outlets are hybrid sockets built to accept all four, though Type O is the official standard and Thailand has signaled a long-term plan to phase out Type A/B compatibility.
