Using US Chargers in the UK: Voltage, Plugs & Adapters Explained

Traveling from the US to the UK with electronics? The two critical differences—voltage and plug shape—require the right solution to avoid damaging your devices.

The Two Incompatibilities

Check Your Charger First!

Most modern laptop, phone, tablet, and camera chargers are dual-voltage (100–240 V). Look for "Input: 100–240V ~ 50/60Hz" on the brick. If yours says this, you only need a plug adapter (Type A/B → Type G). No voltage converter required.

When You Need a Voltage Converter

Older or high-wattage devices (hair dryers, curling irons, some electric shavers, kitchen appliances) may be single-voltage (110–120 V only). Using them on 230 V will destroy them and pose fire risk. Options:

• Step-down transformer (converter): Heavy, bulky, rated for watts (choose 2× device wattage). Only for short-term use with heating appliances.
• Buy dual-voltage travel versions: Lighter, safer, often cheaper than a quality converter.
• Purchase locally: UK replacements for hair tools are widely available (Boots, Superdrug, Argos).

Plug Adapters: What to Buy

• Simple Type G adapter: £3–£10. No voltage change. Only for dual-voltage devices.
• Universal travel adapter: Covers 150+ countries, often includes USB ports. £15–£30.
• UK-specific with fuse: Type G plugs must have a fuse (3A or 13A). Quality adapters include one; cheap ones may not.

Critical Safety Notes

• Never use a plug adapter alone with a single-voltage device.
• UK bathrooms have shaver sockets (230 V, limited current, isolated transformer)—okay for low-power dual-voltage devices only.
• Power strips/surge protectors from the US are not rated for 230 V; buy a UK power strip if needed.

Bottom line: Check every charger's label. Dual-voltage + plug adapter = good to go. Single-voltage = leave it home or buy a converter (for low-wattage) / UK replacement (for high-wattage).