Checker › the US to Thailand

Do you need a travel adapter the US to Thailand?

You may not need an adapter

At least one of your the US plug types fits sockets in Thailand. An adapter is still worth carrying as backup.

Sockets in Thailand
Type AType BType CType O
Voltage
120 V → 230 V
⚠ Voltage jumps from 120 V to 230 V. Dual-voltage gear (phones, laptops, marked "100-240V") is fine with just an adapter, but single-voltage appliances (hair dryers, straighteners) can be DAMAGED - use a converter or buy locally.

Thailand is a trap for Americans in the same way Vietnam is. Thai sockets often accept the flat US Type A/B pins, so your plug fits, but Thailand runs on 230V, nearly double the US 120V. Fitting is not the same as safe.

Will your devices work in Thailand?
📱
Phone charger
Usually fine - dual-voltage, just add the adapter
✓ OK
💻
Laptop charger
Usually fine - dual-voltage, just add the adapter
✓ OK
📷
Camera charger
Usually fine - dual-voltage, just add the adapter
✓ OK
🨥
Electric toothbrush
Usually fine - dual-voltage, just add the adapter
✓ OK
💨
Hair dryer / straightener
Often single-voltage: can be damaged. Use a converter or buy there.
⚠ Check

What to pack

See recommended adapters for Thailand → Check another route

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Frequently asked questions

My US plug fits in Thailand, am I safe?

For dual-voltage devices yes; single-voltage US appliances can be destroyed by 230V despite fitting.

Do I need a converter for Thailand?

Only for single-voltage appliances.

What plug does Thailand use?

Types A, B, C and O, at 230V / 50Hz.

Related guides

Us plugsThailand guideUk to the USAAustralia to Bali / IndonesiaAustralia to JapanUk to JapanUk to ThailandPlug types A/B/C explainedAll 220+ countries →