The Imperial Units
The Imperial unit system of measurement is the second most used system of units in the world, after metric system. Most of the countries in Europe, Africa, Asia, and Latin America use metric measurement system, at that the system of Imperial units is widely used in the USA, in the UK, in India, in Hong Kong, as well as partially in such countries as Thailand, Malaysia, South Africa, New Zealand, etc. Sometimes, the Imperial system of measurement is referred to as the British Imperial system, since it originates from the British Isles.
For length measurement, such metric units as meters, centimeters, or kilometers, are the most commonly used, but the Imperial system offers a variety of units like miles, feet, or inches. When measuring weight, metric system involves using such units as grams, kilograms, or milligrams, and the Imperial system of measurement is using pounds and ounces. For liquid volume measurement, along with liters or milliliters of metric system, such units as gallons or pints are used in the Imperial system. Finally, for temperature measurement, metric system envisages using Centigrade scale, while in the Imperial system Fahrenheit scale is being used.
Those who travel to the UK or the USA from European or other metric system using countries should keep in mind some basic conversions between the Imperial and metric units. The distance of 1 mile is equal to about 1.6 kilometers. 1 kilogram is close to 2 pounds. An inch is equal to 2.54 centimeters, and one foot is approximately 1/3 of a meter. 1 gallon is about 4.5 liters, and 1 ounce is slightly below 30 grams. Equivalent of 0 degrees Celsius in temperature measurement system is 32 degrees Fahrenheit.