Using United States Electronics in Vietnam

United States runs 120⁠V and Vietnam runs 220⁠V. Your plug shape is compatible; single-voltage devices also need a converter.

United States runs 120V and Vietnam runs 220V. A plug adapter changes the shape, not the voltage — single-voltage devices need a converter.

United States (120⁠V) vs Vietnam (220⁠V) at a glance

Spec	United States	Vietnam
Voltage	120⁠V	220⁠V
Frequency	60⁠Hz	50⁠Hz
Plug types	Type A/B	Type A/C

Your United States devices in Vietnam

Hair Dryer No MacBook Pro Charger (USB-C Power Adapter) Yes CPAP Machine Yes iPhone Charger Yes

Next step

What to do next

Check one device in VietnamUse your exact device label for Vietnam, not just the route average.Build a Vietnam trip packSave several devices, adapter needs, and converter/no-go warnings together.Adapter vs converterAvoid the common mistake: plug shape does not change voltage.

The adapter we recommend

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Get a United States→Vietnam adapter

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.

Best travel adapters for Vietnam →

FAQ

Do United States plugs work in Vietnam?

Often yes — the plug shapes are compatible. But check the voltage before plugging single-voltage devices in.

Will my United States hair dryer work in Vietnam?

Not safely if it's single-voltage. Vietnam runs 220V vs United States's 120V — use a dual-voltage dryer or a converter.

Is the voltage different between United States and Vietnam?

United States is 120V and Vietnam is 220V. That difference matters for single-voltage devices.

Power outlets in Vietnam · Adapter vs converter

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.