The UK uses the metric system of weights and measures. Fruit and vegetables are bought by the kilogram, petrol and milk by the litre, distances are measured by the yard or mile, and speed limits are in miles per hour. However, as with all changes there are those that still use the old Imperial system in preference using miles, yards, feet & inches as well as pounds, ounces, gallons & pints.
Electrical Fittings
The electrical voltage in Britain is 230 / 240v AC, 50 Hz. British plugs have 3 square prongs, so an adapter is necessary to use non UK appliances in Britain.