Compare the plug shapes, voltage and frequency in Thailand and Marshall Islands, and find out which adapter you need before you travel.
No adapter needed
You will not need a plug adapter — Thailand and Marshall Islands share at least one common plug shape (Type A, Type B). Voltages differ (230 V at home vs 120 V abroad), so check the label on each device. Most modern dual-voltage chargers handle the swing without a converter, but heating appliances usually do not. The mains frequency is also different (50 Hz vs 60 Hz). This rarely matters for electronics but can affect motor-driven devices like clocks and shavers.
Thailand (home)
Marshall Islands (destination)
Electrical specifications in Marshall Islands
More about plugs in Marshall Islands
In Marshall Islands, the standard power plug is Type A and Type B. The country runs on 120 volts at 60 Hz. That means wall sockets in Marshall Islands can be one of 2 different shapes — Type A, Type B, and your plug needs to physically match the socket to fit.
Full Marshall Islands plug guide