Thailand uses the same plug shape as the US, but runs on 220V — check your device's voltage rating.
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| Plug types | A, C, O |
| Voltage | 220V |
| Frequency | 50Hz |
| US standard | Type A/B, 120V, 60Hz |
Type A (flat parallel pins, ungrounded (US/Canada/Japan style)), Type C (two round pins, ungrounded ("Europlug")), Type O (two round pins with a ground pin (Thai style)).
Thailand uses Type A (flat parallel pins, ungrounded (US/Canada/Japan style)), Type C (two round pins, ungrounded ("Europlug")), Type O (two round pins with a ground pin (Thai style)).
No — Thailand uses the same plug shape as the US, so a standard US plug fits without an adapter.
Thailand runs on 220V at 50Hz, notably different from the US standard of 120V — check that your device is rated for this voltage before plugging in directly.
Most modern electronics (phone and laptop chargers) are dual-voltage (100-240V) and only need a plug adapter, not a converter. Single-voltage, high-wattage devices like hair dryers or straighteners may need an actual voltage converter — check the label near the plug prongs for the input voltage range.