Travel adapter from Japan to Vietnam
No Adapter Needed
You will not need a plug adapter — Japan and Vietnam share at least one common plug shape (Type A, Type B). Voltages differ (100 V at home vs 230 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.
Japan (home)
✓
Type A
Two flat parallel pins
✓
Type B
Two flat pins + round ground
Vietnam (destination)
Electrical specs
Japan
100 V
50/60 Hz
⚡ Differs
Vietnam
230 V
50 Hz
⚡ Voltage converter may be needed. Check your device label — most modern electronics (phones, laptops) support 100–240 V and only need a plug adapter. Hair dryers, kettles, and older appliances may need a step-up or step-down converter.
More about plugs in Vietnam
In Vietnam, the standard power plug is Type A and Type B and Type C. The country runs on 230 volts at 50 Hz. That means wall sockets in Vietnam can be one of 3 different shapes — Type A, Type B, Type C, and your plug needs to physically match the socket to fit.