Do I need a travel adapter?

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    How the verdict works

    The world uses 15 socket types (lettered A to O) and two voltage families: roughly 100–127 V (the Americas, Japan, Taiwan) and 220–240 V (almost everywhere else). A plug adapter only changes the shape of your plug. A voltage converter changes the voltage. Phones, laptops and USB chargers are almost always dual voltage (look for INPUT 100–240V on the label), so they only ever need an adapter. Hair dryers, straighteners and kettles usually are not.

    Data: IEC World Plugs dataset, cross-checked against two independent sources and national standards bodies. Sources and methodology.

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    All countries A–Z · The 15 plug types · Voltage and frequency by country · Is my device dual voltage?