Travel Adapter vs Converter: Which One Your Gadgets Need

The night before a trip abroad, plenty of people stand in front of an electronics aisle holding two boxes that look almost identical. One says "adapter", the other says "converter", and the difference is not obvious from the packaging. Picking the wrong one can mean a charger that does not fit the wall, or worse, a hair tool that overheats on the first morning. The good news is that a quick look at your gadgets' labels tells you exactly what you need.

Two different problems

Electricity supplies vary around the world in two ways that matter to travellers.

• The shape of the socket. Countries use different plug types, with flat pins, round pins, angled pins or an earth pin in different places.
• The voltage. Mains supplies in North America and some other regions run at around 120 volts, while much of Europe, Asia, Africa and Oceania uses around 220 to 240 volts.

An adapter solves the first problem. A converter, sometimes sold as a transformer, solves the second.

What a plug adapter does

An adapter is a passive piece of plastic and metal. It lets your plug physically fit into a foreign socket and passes the power through unchanged. It does nothing to the voltage. That makes it perfect for devices that can already cope with the local supply, and useless, or even risky, for those that cannot.

Universal adapters with sliding pins cover many countries in one unit, and many now include USB ports. Check that the adapter is rated for the current your devices draw and that it carries the safety markings expected where you bought it.

What a voltage converter does

A converter actually changes the voltage, stepping it down from a higher supply to a lower one or, less commonly, up. It is bulkier and heavier than an adapter, and each model is rated for a maximum wattage. Devices that draw a lot of power, especially anything that heats, can exceed that rating quickly, so read both labels before pairing them.

How to read your charger label

Look for the small printed text on the charger brick, the back of the device or the base of the plug. You are looking for the line marked "Input".

Which gadgets usually need what

Most modern electronics designed to travel are dual voltage. Phone chargers, laptop power bricks, tablet chargers, camera battery chargers and electric toothbrush chargers typically only need an adapter. Always confirm on the label rather than assuming.

The usual trouble-makers are heating appliances: hair dryers, straighteners, curling tongs, travel kettles and some clothes steamers. Many are single voltage and draw a lot of power. For these, a dual-voltage travel version or buying a cheap one at your destination is often simpler and safer than lugging a heavy converter.

Safety habits on the road

• Never force a plug into a socket or an adapter that feels loose or warm.
• Do not stack adapters on top of one another.
• Unplug converters when not in use, and never leave a heating appliance running unattended.
• Check hotel bathrooms: some have shaver sockets that are not meant for other appliances.
• If anything smells of burning, sparks or buzzes, unplug it at the wall and stop using it.

A simple packing checklist

1. Look up the plug type and supply voltage for each country on your route.
2. Read the input line on every charger and appliance you plan to bring.
3. Pack one adapter per wall socket you will need, or a multi-port adapter.
4. Leave single-voltage heating tools at home, or bring a suitably rated converter.
5. Bring a spare charging cable; it is the item most often left in a hotel room.

Power is only half of staying connected. Our guide What Is an eSIM? explains how to arrange mobile data before you leave, and if you are helping a relative get a phone sorted before travelling, our guide to finding local phone programmes covers one route to a basic handset.

Adapter for the shape, converter for the voltage: keep that rule in mind and the night-before-departure aisle becomes a two-minute decision.