Do Eurostar trains have power outlets?

Officially, yes in Eurostar Plus and Eurostar Premier: Eurostar's Help Centre says “We also have USB sockets in Eurostar Plus and Eurostar Premier”, and its trade site lists USB ports as part of the Plus package. Eurostar Standard is less clear-cut — the operator doesn't list USB there, but seat61 states there are USB ports at all seats in all classes on the e320 and refurbished e300. So Standard USB is a conflict between sources rather than a documented absence. No source found says whether any of it is USB-A or USB-C, so bring a USB-A cable and rely on the mains socket.

Yes. Eurostar's Help Centre says there are UK and European power sockets at every seat on its London trains, and its trade site says Eurostar Standard has a “power socket at every seat that work with both UK and European plugs”. seat61 independently records power sockets at all seats in all classes on the e320 and the refurbished e300. The continental ex-Thalys trains are covered too — Eurostar describes them as having individual electrical outlets, and seat61 records power sockets at all seats there, 2-pin and 220V.

Yes — Standard is explicitly covered by Eurostar's own trade description of a power socket at every seat working with both UK and European plugs. The nuance is which socket you personally get, and the sources don't agree. seat61 says the UK 3-pin and European 2-pin sockets alternate, so your seat has one type and the next seat has the other. ShowMeTheJourney says there's a pair of sockets per seat, one of each, but still warns you may have to share with a fellow traveller. The Points Guy says each pair of seats shares two sockets, one UK and one European. If you and your travelling companion both carry the same plug standard, plan on taking turns or reaching across.

Bring one. On the continental ex-Thalys trains (PBKA and PBA, running Paris–Brussels–Amsterdam–Cologne) you definitely need one for a UK plug — only European 2-pin sockets are documented there. On the cross-Channel trains from London both UK 3-pin and European 2-pin sockets are on board the e320 and refurbished e300, and Eurostar's trade site describes a socket that works with both plug types — but seat61 says the two types alternate between adjacent seats, and The Points Guy says a pair of Standard seats shares one UK and one European socket. On either of those accounts the socket you can actually reach may fit only one standard, so don't count on the dual-standard reading. The socket does not change at the tunnel, and no source documents the plug standard varying by country. Once you're off the train you'll need the adapter for the destination country anyway.

Below the seat, but the sources disagree on exactly where: seat61 places the sockets under the armrest, while ShowMeTheJourney says “The sockets are underneath the seat you will be sitting in, so finding the socket and lining up the plug can be quite the challenge!”. Expect a blind reach and a short cable, and check both places before concluding your seat has none.

Yes. Eurostar states that “our continental trains have individual electrical outlets to charge your phones, computers and other devices”, and seat61 records power sockets at all seats on that fleet — 2-pin, 220V, which is the only voltage figure any source gives for any Eurostar train. ShowMeTheJourney confirms European 2-pin sockets in Premier, Plus and Standard. No UK socket is documented on these trains by any source found. On USB, no source documents provision on the continental fleet either way — so treat it as unknown rather than absent, and plan around the mains socket.

Yes, on the operator's own account. Eurostar's FAQ scopes USB sockets specifically to Eurostar Plus and Eurostar Premier, and its trade site lists “UK and European power sockets, USB ports” as part of the Plus package. The Points Guy's review of the premium cabins says “each seat has its own charging ports for electronic devices (USB and U.K./European-style plug sockets)”, which points to per-seat rather than shared provision up front. Note the naming: from November 2024, Standard Premier became Eurostar Plus and Business Premier became Eurostar Premier on the London routes, and the continental Comfort and Premium classes were renamed Plus and Premier at the same time, so older reviews use the old names.

A laptop is fine — the sockets are described as ordinary domestic UK and European sockets, which is why the charger from home is the thing to bring. On the voltage, be careful what you read: the only sourced figure is seat61's 220V for the ex-Thalys continental fleet. No operator source found states the onboard voltage for the cross-Channel e300 and e320; Eurostar publishes socket type only. Any modern laptop or phone charger is rated 100–240V, so it will cope either way — a voltage converter is not something you need.