Can I Use My Hair Straightener (Flat Iron) in Thailand?

Q: What plug type does Thailand use?

Thailand uses Type A/B/C/O sockets at 230V / 50Hz.

Your hair straightener (flat iron) needs a voltage converter in Thailand.

Voltage converter needed

This country's voltage is different from what your device is built for, but the plug shape matches. Do not plug in directly. You need a voltage converter (transformer) rated above your device's wattage. Using the device without one can damage it or create a fire or shock hazard.

Device label varies
Destination grid 230⁠V / 50⁠Hz
Plug fit Type A/B/C/O fits
Verdict Voltage converter needed

Device voltage: varies
Destination grid: 230⁠V / 50⁠Hz
Plug type: Type A/B/C/O fits
Typical wattage: 25–90⁠W
Verdict: Voltage converter needed
Reviewed: 2026-07-17

Based on what's typical for this device — confirm on the label to be sure.

Converter must be rated for at least 113W (device watts + 25% headroom).

Next step

What to do next

Size the converter firstCalculate watts and headroom before buying anything.Read converter guidanceCheck when a converter is reasonable and when it is a bad idea.Add it to a trip checklistKeep Hair Straightener (Flat Iron) in a saved packing verdict for Thailand.

Why

A US 120V single-voltage straightener on 230V power overheats and can scorch hair or fail. Confirm "100–240V" on the plate, or carry a dual-voltage travel model. Frequency does not affect heating.

Thailand runs 230⁠V / 50⁠Hz. Thailand runs 230V at 50Hz but its sockets often accept US-style Type A/B plugs — a dangerous false familiarity. The plug may fit, but a US single-voltage device will still overheat on 230V.

Hair Straightener (Flat Iron) in Thailand at a glance

Your hair straightener (flat iron) vs Thailand's grid
Device voltage profile	varies
Typical wattage	25–90⁠W
Destination voltage	230⁠V
Destination frequency	50⁠Hz
Destination plug types	Type A/B/C/O
Voltage mismatch	120⁠V → 230⁠V = +110⁠V
Verdict	Voltage converter needed

Plug types in Thailand: Type A, Type B, Type C, Type O

Look for "INPUT 100-240V" on the label. If it shows one voltage only, size any converter from the wattage before buying.

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See dual-voltage hair straightener (flat iron) options

Safety check: a plug adapter only changes plug shape. It does not convert voltage, so confirm your device label before buying.

Shopping links never change the safety verdict.

Other devices & destinations

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FAQ

Can I use my hair straightener (flat iron) in Thailand?

Your hair straightener (flat iron) needs a voltage converter in Thailand. Thailand runs 230⁠V / 50⁠Hz on Type A/B/C/O sockets.

Will a travel adapter let me use my hair straightener (flat iron) in Thailand?

No. A travel adapter only changes the plug shape — it does not change voltage. Your hair straightener (flat iron) would still receive 230V.

Do I need a voltage converter for a hair straightener (flat iron) in Thailand?

Yes — your device runs on a single voltage that doesn't match Thailand's 230V.

What plug type does Thailand use?

Thailand uses Type A/B/C/O sockets at 230⁠V / 50⁠Hz.

Adapter vs converter explained · Best converter for a hair straightener (flat iron)

Guidance only — not professional electrical advice. Always confirm against your device's label before plugging in. Local wiring (especially in hotels and older buildings) can vary.