How we check plug and electrical information

What Plug Do I Need? compares the plug and socket types used in your departure and destination countries, then looks at voltage and frequency separately. A plug that fits does not automatically mean an appliance is suitable for the local electricity supply.

How we check the information

We prefer official or standards-based information where it is available. We then use reliable specialist references to cross-check the details, especially for countries with more than one plug type, voltage or frequency.

When reliable sources disagree, we give more weight to the most authoritative and current source. We keep any important uncertainty or regional variation in the data rather than forcing a simple answer.

Plug fit and voltage are separate

A travel adapter only changes the shape of the plug. It does not change the voltage. That is why the calculator shows plug fit and voltage as two separate results.

Many phone, tablet and laptop chargers are marked 100–240V, 50/60Hz. If yours is, it should normally work across that range with the correct plug adapter. Appliances designed for one voltage only need more care.

How we keep the data up to date

We review the electrical dataset periodically and also when a credible source suggests something has changed. Unusual or previously uncertain countries receive extra attention. We record when data has been reviewed and re-check the calculator after material changes.

Before you plug in

This site provides general travel guidance, not professional electrical advice. Check the voltage and frequency shown on your own appliance or charger and follow the manufacturer’s instructions. Local installations can vary, so if anything is unclear or safety-critical, ask a qualified electrician or the accommodation provider before use.