If you've ever had to make time at an airport to buy a travel adapter or worse, felt a lurch of panic on the plane when you realised you forgot to pack one, you'll know the added headache and expense of last-minute buying.
You can save a lot of money by planning ahead and purchasing a couple of power adapters online before your holiday. Once you've got them, you can keep them in your suitcase or travel bag and never get caught out again.
Adapters have come a long way in the past few years. For one thing, it's now easy to buy an adapter that can be used in just about any region.
You can even find some world-to-world adapters, which will take any plug type, and connect to any socket type - ideal not only for travelling, but also for any international tech that you end up bringing back from your trip to use at home.
If you’re not sure which kind of adapter you need, have a look at our buying advice, which follows the chart. We’ve got information on sockets and connecting your adapter, as well as regions, voltage, and 2- versus 3-pin plugs.
If you're busy planning a trip, you might also want to take a look at the best travel gadgets we've tested, along with our pick of the top travel apps for your phone. And if you're struggling to keep your phone and other devices charged while you travel, you might also want to check out our guide to the best portable power banks.
Best travel adapters
TEC UK to EU Travel Adapter Twin Pack - Best budget option (EU)
Let's start with something dead simple: this is a twin pack of UK to EU travel adapters, which will let you use your UK tech just about anywhere in Europe.
They're cheap and cheerful, but they work - and for most people, that's enough. They also cost a lot less online than buying the exact same ones in an airport newsagent.
If you know you mostly travel in Europe, or just have a specific trip coming up that you need an adapter or two for, this is the cheapest way to charge your gadgets once you're there.
TEC UK to US Travel Adapter Twin Pack - Best budget option (US)
Along very similar lines, here's the same adapter, but for the US and other countries that use this plug type, which includes Canada, Mexico, Japan and most of South America, among other locations.
Remember that it won't convert the voltage, so you may find that some of your UK devices charge more slowly in the US, and a few might not even charge at all if they can't draw sufficient power, but in our experience this is rare.
Zendure Passport II Pro - Most powerful
The Zendure Passport II Pro is a travel adapter that’s so powerful you’ll probably end up using it at home too.
It can plug into UK, US, EU, or Australian sockets, and you can also plug all of those into it, covering more than 200 countries. The 10A self-resetting fuse can handle high-power appliances, and will reset if it overloads rather than breaking - although it’s not earthed.
It can charge up to six devices simultaneously: one through the main AC socket, and then two USB-C and four USB-A. One USB-C port supports most fast charging standards for laptops and phones up to 61W, although if you connect other devices simultaneously this port caps at a slightly lower 45W, with 12W shared between the other USBs.
Go Travel Duo Earthed UK to EU Power Adapter - Four device charging
This handy power adaptor from Go Travel will let you charge up to four devices simultaneously through just one plug: two through the UK mains sockets, and another two through the included USB-A sockets.
This model is perfect for using across Europe, but you can also get an essentially identical one for using in the US and Canada and other compatible countries.
Bear in mind that both are earthed, meaning they're ideal for safely charging high usage devices like laptops, but as the US model also comes with a non-removable earth pin, it won't fit into two-pin sockets in the US.
OneWorld Travel Adapter - Best for safety
The fully earthed OneWorld travel adapter (fromOneAdapter) is powerful enough to charge a laptop via a built-in USB-C port, alongside four other devices – and it’s one of the safest travel adapters you can buy.
It features three old-school USB-A ports and one USB-C port, as well as being a standard travel adapter with US, UK and Australian plug types. (You'll need a separate standard EU adapter to use to charge non-USB devices, due to grounding safety regulations.)
The USB charger supports a broad input range (100-240V) for international voltage requirements. The three quick charge 3.0 (12W) USB-A ports in the adapter can be used for fast-charging phones and tablets.
Skross World Travel Adapter MUV USB - Best for two-pin compatibility
Skross is one of the best recognised and most trusted names around when it comes to travel adapters, which is why we've picked its MUV USB adapter for our round-up.
Designed for two-pin, un-earthed devices, this is perfect for less power-intensive tech like shavers, phones, tablets, or e-readers, but might not be able to keep up with a laptop or hairdryer's power needs. On the plus side, that means its 2-pin outputs will work in all US and European sockets.
However, it has the advantage of accepting input devices from the UK, US, Australia, Europe and most of Asia, and outputting to all of the same countries.
You also get two USB-A sockets, which share a 5V power supply. You can use those to charge two USB devices while simultaneously charging something else through the main socket, making this ideal for anyone with a few devices they need to charge at once.
Skross World Travel Adapter Pro Light USB - Best for quick charging
This Skross adapter looks pretty similar to the one listed above, but it has one significant difference: it includes an earth pin, and is rated for up to 1575W, meaning you can safely use it to (quickly) charge high power devices like laptops.
As with other three-pin plugs, note that it means it won't fit every plug socket - the earth pin isn't removable, so won't fit two-pin sockets in the US or Australia, meaning you might find some sockets you just can't use.
Also, note that this does support European plugs, but only through using the detachable plug section. This means you can't use the included USB sockets for charging, although those will work in every other region.
Syncwire 4-Port USB Charger - Best for home & travel use
Here's something a little different. This four-port USB charger from Syncwire comes with interchangeable plugs for the UK, USA, and Europe, so you just grab the one you need for your trip and you'll be able to keep all of your USB devices charged.
Obviously, that also means it's ideal to use at home as well, so it won't just sit and gather dust between holidays, unlike most travel chargers. Two of the ports are only rated to 1A/5W, which is a bit slow, but the other two offer 2.4A/12W, which should be fast enough for most purposes, although it might take a while to fully top up a laptop.
Anker PowerPort 4 Lite - Best for family use
The Anker PowerPort 4 Lite lacks Quick Charge 2.0 or 3.0 compatibility but not every device is compatible with that anyway, so these four standard USB-A ports will be fine for most, with enough to satisfy a small family on the move.
It does feature PowerIQ and VoltageBoost, however.
It features interchangeable UK and EU plug heads, but strangely none for US or Australia/New Zealand.
TEC UK To India Adaptor - For Southern Asia
If you travel to India, Pakistan or Sri Lanka, you may find international power points in your hotel but these countries also have a dedicated plug type.
Travel adapters of this kind can be expensive at the airport, so to save money, buy before your head off. This is a twin pack, so it's even better value.
Bear in mind that these are straightforward adapters and not voltage transformers,
Connecting your adapter
Most adapters come with USB-A sockets - some phones and laptops ship with cables with USB-C connectors at both ends, so make sure you have a USB-A-to-USB-C cable with you to keep those topped up. But USB-C ports are appearing now, as with the OneWorld PD and Syncwire Quick Charger above.
Even more useful are travel adapters that incorporate USB sockets, which mean you can use one plug to charge multiple devices, since most of the tech you travel with probably charges via USB anyway. Some now even include a USB-C Power Delivery port - useful for owners of USB-C laptops such as Apple's newer MacBooks.
Regions and voltages
The most important thing to check before you buy a travel adapter is what sort of plug the area you're travelling to uses. For the sake of this article, we're going to assume that you're based in the UK, which means you'll need an adapter to travel almost anywhere in the world, with rare exceptions like Hong Kong and Singapore which use the UK plug.
For the most part, there are three broad regions of plug beyond the UK type: the round pinned plugs used across Europe, the flat straight pins used across America and some parts of Asia, and the flat slanted pins used in Australia and the rest of Asia. It's always worth double-checking with a quick Google search ahead of a trip, and there are a few other unique plug types out there to watch out for.
Voltage can also be an issue. UK plugs use 220-240V, which is conveniently what you'll find across Europe and Australia. US sockets only run at 120V, while Japan offers an even skimpier 110V. For the most part, this isn't an issue, but it may mean that some devices charge more slowly than you're used to, and some of the most power-intensive might not work at all if they can't draw sufficient power from the mains to run. Unfortunately, there's nothing a travel adapter can do about that, as they don't convert voltage.
2-pin vs 3-pin
One thing to look out for in travel adapters is whether or not they support earth pins. While 3-pin plugs are the standard in the UK, elsewhere in the world they're used less often or not at all.
Earthing helps to protect you and your gadgets from electric shock, so you may prefer to opt for 3-pin adapters, which offer an extra level of protection. Bear in mind that this may limit where you can use them - the US and EU have both 2-pin and 3-pin sockets, so your 3-pin plug simply won't fit into some sockets, and you might wish you'd risked it with a 2-pin model.