“My laptop brick said 100–240V, so I focused on the wall cable and whether it would fit London’s G outlets.”
— remote-work setup in London
Will my laptop charger work on London’s 230 V supply?
For London, verify the exact laptop equipment instead of relying on a country-level assumption. In London, a familiar-looking outlet can still hide a voltage issue, while an unfamiliar outlet may need nothing more than a passive plug adapter. The laptop’s AC adapter should show an INPUT range that includes 230 V and 50 Hz. A label such as 100–240V ~ 50/60Hz normally covers the listed supply.
A North American 120 V-only laptop brick would not become safe just because an adapter lets its plug enter a G socket. Modern laptop adapters are commonly wide-input, but the printed label on the exact brick is the evidence that matters. Across different accommodations in London, a tested laptop power setup is easier to repeat.

London power: G · 230 V · 50 Hz
See the United Kingdom power plug guide →Will my laptop plug fit London outlets?
The G outlet family answers plug fit for a laptop, not whether it accepts 230 V. London lists G. If the laptop charger’s wall plug does not match, use a plug adapter or a compatible detachable AC lead; neither option changes voltage. In London, a compact plug solution also keeps a heavy power brick from hanging awkwardly from the wall.

EPICKA Universal Travel Adapter — when a laptop plug does not match London
For London, use it only after confirming the laptop charger accepts 230 V; it solves G plug fit and does not change the local electrical supply.
View on Amazon →As an Amazon Associate, TripPlanning.org may earn from qualifying purchases.USB-C laptop charging in London: check watts as well as voltage
A hotel-room workaround in London should not replace checking USB-C PD wattage and port sharing before departure. USB-C changes the packing decision but not the electrical rules. A USB-C charger may accept 230 V and still be underpowered for the laptop. Before replacing the original brick for a London trip, compare USB-C PD wattage, port capability and whether the laptop expects a specific charging profile.
Grounding and detachable laptop cables in London
Testing the complete laptop setup before London keeps the travel-power kit simpler. Grounding deserves a separate look when the original laptop adapter uses a grounded cord. G describes the local socket family, but hotel and older-building outlet arrangements can vary. If your power brick uses a detachable cable, a country-compatible grounded lead can be cleaner than stacking adapters.

Anker 735 Charger — a compact USB-C option for a London laptop kit
For a London laptop setup, this is useful only when its INPUT covers 230 V and its USB-C output meets the computer’s charging requirement; check both before relying on it in London.
View on Amazon →As an Amazon Associate, TripPlanning.org may earn from qualifying purchases.Do I need a voltage converter for a laptop in London?
Once a converter-free work setup is confirmed for London, extra conversion hardware is easier to avoid. For another stop in United Kingdom, the simplest workflow is usually: verify the charger input, solve plug fit, then test the full laptop setup before departure. A voltage converter is normally unnecessary when the laptop adapter already accepts 230 V; adding one creates more bulk without improving a compatible switching power supply.
Travel-friendly picks on Amazon
Three non-electrical trip essentials, kept separate from the device and power products above.

MZOO Sleep Eye Mask
Useful for flights and bright hotel rooms on a London trip, especially when a long laptop travel day makes good rest more valuable.
View on Amazon →
UROPHYLLA Inflatable Travel Pillow
A compact neck-support option for flights or transfers around London; it stays separate from the electrical compatibility decisions for your laptop.
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Untethered 4-Pack Luggage Straps
Bright straps can help secure and identify checked luggage on the way to London or another stop in United Kingdom, without repeating the power accessories already shown above.
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Other devices in London
Explore other device power guides for this exact destination. Links never switch to another country or city.