PlugVoltage

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; mismatched single-voltage appliances must not be connected directly. Replace high-power heating appliances with a model rated for the destination.

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

Choose your next step

Check one device Get an exact verdict using your device label. Build a trip checklist Check several devices and share the packing verdict. Size a converter Calculate watts and headroom before buying.
Thailand runs 230V — nearly double the US 120V. Dual-voltage gear needs only an adapter; mismatched single-voltage appliances must not be connected directly. Replace high-power heating appliances with a model rated for the destination.

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) Check Rating iPhone Charger Check Rating CPAP Machine Check Label Curling Iron Converter Needed Laptop Charger Check Rating Electric Shaver Check Rating Nintendo Switch Charger Check Rating
Shopping link

External shopping link. PlugVoltage is not currently earning from this link.

Get a travel adapter for Thailand(opens in new tab)

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.

See the best travel adapters for Thailand →

Thailand outlet FAQ

Can I charge my phone in Thailand without a converter?

If the actual input label says 100-240V and supports the local frequency, no voltage converter is needed. A typical charger profile does not verify your own unit. Chargers rated (100–240V) — you only need a plug adapter.

Is 230V dangerous for US devices?

Do not connect a mismatched single-voltage appliance directly. For high-power heating appliances use a local-voltage model, not a travel converter workaround. Confirm the actual input label, frequency and grounding even for a 100-240V charger.

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.