(1) English system: British law stipulates that commercial retail must use metric system; In the field of science, the British are used to the metric system, while the Americans are used to the English system.

(2) Metric system: the first item is to use decimal system for calculation. As far as decimal system is concerned, the conversion between two units only needs to be converted into multiples of ten, which can reduce its complexity.

2. Different meanings:

English system: it is a measurement system used in English-speaking countries such as Britain and the United States. Due to various historical reasons, the English system is quite complicated.

Metric system: also known as metric system and metric system. From 65438 to 0858, after the signing of the Sino-French trade charter, China's international system of weights and measures was introduced. Founded in France. 1On April 7th, 795, the French National Assembly decided to promulgate metric regulations.

3. Different units of measurement:

Metric units measure dimensions in millimeters, while English units measure dimensions in inches.

Basic English information

British units were born out of Roman imperial units of measurement, so like Roman imperial units, they were all based on agricultural production at that time. For example:

Unit of length: 1 inch = 25.4 mm, and one inch is equal to the total length of three barley.

Weight unit: 1 lb = 0.45392kg, and 1 lb is 7000 times the weight of a barley extracted from the middle of the wheat ear.

Capacity unit (export unit): 1 pint = 0.5506 liter, and the dehydrated weight of one product is equal to one and a quarter pounds.

Area unit: 1 mu = 40,470,000 square centimeters.