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Travel Guide Updated April 2026

UK Plug Adapter Guide

UK uses Type G three-rectangular-pin plugs at 230V — what adapter to buy and why dual-voltage matters.

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UK Plug Type

UK plugs are Type G — three rectangular pins arranged in a triangle. The UK plug is internally fused (3A or 13A fuse inside). Unique to UK, Ireland, Malta, Cyprus, Hong Kong, Singapore, Malaysia, parts of the Middle East.

  • 3 rectangular pins — top is earth (10mm × 4mm), bottom two are 6.4mm × 4mm
  • Live and neutral pins partly insulated — built-in safety
  • Includes a fuse (3A for low-power, 13A for high-power devices)
  • Switched sockets — UK sockets have on/off switches

Voltage

  • 230V at 50Hz — UK standard
  • USA/Canada 110V at 60Hz — different! Single-voltage US devices may fail
  • EU 230V at 50Hz — same voltage but different plug shape (Type C/F)
  • Australia 230V at 50Hz — same voltage, different plug (Type I)

What to Buy

  • Travel adapter — works for one device, £3-8 (Boots, Tesco, airports)
  • Universal travel adapter — fits multiple countries (US/EU/UK/AU), £15-25
  • USB-C/USB-A adapter — combines plug + USB ports, £15
  • Multi-port travel adapter with surge protection — £25-40 (most secure for laptops/electronics)

Where to Buy

  • Boots — every UK high street + airports (£3-15)
  • Tesco / Sainsbury's / Asda — supermarkets (£3-8)
  • Argos — fast online + collect (£5-25)
  • Amazon UK — cheapest, next-day Prime
  • UK Airports — last resort (most expensive, £10-25)

Dual-Voltage Devices

Check the label of your charger or device for the input voltage range. Most modern electronics are dual-voltage (100-240V), so they only need a plug adapter, not a voltage converter.

  • Phone chargers, laptop chargers, camera chargers — usually dual voltage (label "100-240V"). Just need plug adapter.
  • Hair dryers, hair straighteners, electric toothbrush chargers — often single voltage. May fuse on UK 230V power.
  • Tip: Read the small print on the device label. If it says "100-240V" — safe with adapter only. If "110-120V" only — needs voltage converter.
  • UK hairdryers easy to buy — £15 at Boots
⚠️ Voltage warning: Plugging a US 110V hair dryer into UK 230V will burn it out instantly (and may trip the breaker). Always check.
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Frequently Asked Questions

What plug adapter do I need for the UK?

Type G — three rectangular pins. UK is the only country (with Ireland, Malta, Cyprus, Hong Kong, Singapore) to use this design.

Will my US/EU charger work in the UK?

Yes with a Type G adapter, IF your charger is dual voltage (100-240V). Most modern phone/laptop chargers are. Hair tools and old appliances may not be.

Is UK voltage 110V or 230V?

230V at 50Hz. Twice US voltage. Most modern electronics handle both; check the label.

Where can I buy a UK plug adapter?

Boots (every high street), supermarkets, Argos, Amazon UK, airports (most expensive). £3-15.