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Country power profile

Power Outlets & Plugs in Thailand

Thailand uses Type A/B/C/O sockets at 230⁠V / 50⁠Hz. Dual-voltage (100–240V) devices need only a plug adapter; single-voltage US devices need a converter.

Voltage
230⁠V
Frequency
50⁠Hz
Plug type
Type A/B/C/O
US plug
Often fits
Reviewed
2026-07-17

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Thailand runs 230V — nearly double the US 120V. Dual-voltage gear needs only an adapter; single-voltage US devices need a converter.

Fast checks for Thailand

Traveler checkWhat the data saysAction
100-240V chargersVoltage-safe on 230⁠V / 50⁠Hz.US plugs often fit; still confirm the charger label.
120V-only appliances230V is not compatible with a 120V-only device.Use a converter only for low-watt devices; replace high-watt heat tools.
Plug shapeSockets are Type A/B/C/O in the country data.Adapter choice is about pin shape only; it never changes voltage.

Thailand at a glance

Voltage230⁠V
Frequency50⁠Hz
Plug typesType A/B/C/O
Voltage zoneHIGH
US plug fits?Often yes

Plug types used in Thailand

Type A Reference shape and compatible sockets Type B Reference shape and compatible sockets Type C Reference shape and compatible sockets Type O Reference shape and compatible sockets

Type A Type B · grounded Type C Type O · grounded

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.

Your devices in Thailand

Hair Dryer No MacBook Pro Charger (USB-C Power Adapter) Yes iPhone Charger Yes CPAP Machine Yes Curling Iron Converter Needed Laptop Charger Yes Electric Shaver Yes Nintendo Switch Charger Yes
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Safety check: a plug adapter only changes plug shape. It does not convert voltage, so confirm your device label before buying.

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Thailand outlet FAQ

Can I charge my phone in Thailand without a converter?

Yes. Phone and laptop chargers are dual-voltage (100–240V) — you only need a plug adapter.

Is 230V dangerous for US devices?

Only for single-voltage (120V-only) devices like hair dryers — those need a voltage converter. Dual-voltage gear is fine on an adapter.

What plug type does Thailand use?

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

Related

Adapter vs converter · What "100–240V" means
Nearby: Singapore · Philippines · Indonesia · Vietnam
Travelling to Thailand? From United States · From United Kingdom

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.