I wonder what is the difference between metric and imperial?

metric system] is the abbreviation of the internationally unified unit of measurement. Including weight (mass), length, volume and other complete sets of measurement system. Also known as "metric".

The old name was "Mitu system". Its main advantages are: there are reliable criteria for the selection of units; There is a close relationship between the basic units (length, mass); It adopts the decimal system and is easy to use.

China's first announced in June 1959 and determined to be China's basic measurement system. The metric system was first pioneered in France at the end of the eighteenth century. In 1875, representatives of 17 countries, including France, Germany, the United States, and Russia, signed the Mitu Convention in Paris and established the International Bureau of Weights and Measures

1) The unit of length is meters, code m. (2) The unit of mass is kilogram (kg), code kg. (3) The unit of capacity is liter, code L.

Imperial System A system of measurement used in English-speaking countries such as the United Kingdom, the United States, etc. The primary unit of length is feet, the main unit of weight is pounds, the primary unit of volume is gallons, and the unit of temperature is Fahrenheit.

For a variety of historical reasons, the base system of the imperial system is quite complicated. In terms of use occasions, the imperial system is generally used in daily life; However, UK law stipulates that commercial retail must use the metric system; In the field of science, the British are accustomed to the metric system, and the Americans are accustomed to the imperial system.

Length, weight, area, volume, etc., are divided into metric and imperial systems, and now we can still come into contact with the imperial system of inches (feet), gallons, pounds, ounces, etc. 1 inch = millimeter, 1 foot = 12 inches, 1 inch = 8 cents, how many inches is equal to how many millimeters or centimeters, you will know it as soon as you count it; The gallons are divided into English gallons and American gallons, 1 English gallen = liter, 1 US gallon = liter; 1 lb = kg; Ounces are divided into constant balance, gold scale and medicine scale, constant balance 1 ounce = gram, gold scale 1 ounce = gram, medicine balance 1 ounce = gram. There are many more, but we have very little contact with them now, let alone use them, so I won't mention them here.

?The unit of length is learned in elementary school.

The difference between Metric and Imperial is that metric units calculate dimensions in millimeters, while imperial units calculate dimensions in inches. The relationship between the two is that 1 inch is equal to millimeters, which is mainly used in thread standards.

The imperial thread is marked with the inch system for the thread size, which is divided into two types: cylindrical and conical according to the shape; According to the angle of the tooth type, it is divided into two types. The 8 mark in a thread refers to the diameter of the thread size in inches. One inch is equal to 8 points, 1 4 inches is 2 points, and so on.

Difference Between Metric and Imperial

Metric threads are expressed in terms of pitch, and American and British threads are expressed in terms of the number of threads per inch, which is the biggest difference between them. The metric thread is 60 degree equilateral, the inch thread is isosceles 55 degrees, and the American thread is 60 degrees.

Metric threads are in metric units, and American and British threads are in imperial units. 1 4. The pipe thread is mainly used for the connection of the pipeline, and the internal and external threads are closely matched, and there are two kinds of straight pipes and conical pipes. The nominal diameter refers to the diameter of the connected pipe, and obviously the large diameter of the thread is larger than the nominal diameter.

1 4 , 1 2 , 1 8 is the nominal diameter of an inch thread in inches. The best way to identify this is to measure the distance between the two thread tips with a buckle rail. If the measurement is an integer or decimal divisible by 5, then it is a metric thread.

If not, it is an inch thread.

Hello, Imperial: A system of measurement used in English-speaking countries such as the United Kingdom and the United States. The British system, the basic units are pounds and yards.

Metric: also known as "meter", "rice system". In 1858, after the signing of the Sino-French Treaty of Commerce, an international system of weights and measures was introduced to China.

Summary. Hello dear! Conversion of Metric and Imperial to Metric and Imperial conversion refers to the conversion of metric and imperial units to each other.

Difference Between Metric and Imperial: The metric system is calculated in millimeters, and the imperial system is calculated in inches. The metric system, also known as the metric system, was founded in France, and the metric system uses meters of measurement, decimeters, centimeters, millimeters and other units of measurement to determine the length, and the length of time is determined by seconds.

The imperial system is a system of measurement used in English-speaking countries such as the United Kingdom and the United States. For this reason, it is necessary to convert metric and imperial units on a day-to-day basis.

Hello dear! Conversion of Metric to Imperial refers to the conversion of metric to imperial units. Difference Between Metric and Imperial:

The metric system is measured in millimeters, and the imperial system is measured in inches. The metric system, also known as the meter system, was founded in France, and the metric system uses large stool meters, decimeters, centimeters, eggplant millimeters and other units of measurement to determine the length, and the length of time is determined by seconds. The imperial system is a system of measurement used in English-speaking countries such as the United Kingdom and the United States.

For this reason, it is necessary to convert metric and imperial units on a day-to-day basis.

The metric size is converted to 1 inch is equal to a millimeter, 2 inches is equal to a millimeter, 3 inches is equal to a millimeter, 4 inches is equal to a millimeter, 5 inches is equal to 127 millimeters, and 1 foot is equal to 3048 millimeters. Carry a letter.

Metric: The "metric" unit. "Metric" is decimal place, 1 meter = 10 decimeters (dm); 1 dm = 10 cm orange (cm); 1 cm = 10 millimeters (mm).

The imperial dimensions are expressed as: 1 foot (Pibi 1') = 12 inches (12")；1 inch = 8 cents. English points with 1 8"，1/4"，3/8"，1/2"，5/8"，3/4"，7/8"Denote.

1 minute of cavity grip = 125 filament, 1 inch = 1000 filament. Changed imperial size to "metric" size: 1 inch = mm.

The conversion of metric and imperial is equal to 1 inch. The metric system is a completely innovative system of units, also known as the meter kilogram second MKS or MKS unit system, which is based on the following three basic units, a system of measurement used in English-speaking countries such as the United Kingdom and the United States, and the main unit of length is the foot.

Features of the metric and imperial systemsThe metric system is a completely innovative system of units, also known as meters, kilograms, seconds, MKS or MKS units, based on the following three basic units: meters to determine distance, kilograms to determine mass, seconds to determine the length of time, it is based on scientific principles, and meets the needs of increasingly frequent commercial activities and scientific research.

The imperial system is a system independent of the International System of Units, which is no longer used in most parts of the world except for the United States, Myanmar and Liberia, the International System of Units is the most commonly used standard system of weights and measures in the world, which is used by the vast majority of countries, and it is necessary to decimal in order to calculate In terms of decimal places, the conversion between two units can be reduced by converting it by multiples of ten.

Metric and Imperial Comparison Tables: The comparison tables for the pro-metric and imperial systems are 1 mile = 1760 yards, 1 yard = 3 feet, and 1 foot = 12 inches. Metric, 1 km = 1000 m.

I 1 meter = 100 cm, 1 cm = 10 mm. Imperial and metric are converted to each other, 1 mile = kilometer, 1 yard = meter, 1 foot = meter, 1 inch = centimeter Today we talk about the imperial system and the metric system are both used to measure the length of the unit. The imperial length of a single vertical decintment is, miles, yards, feet, inches.

The metric units of length are kilometers, meters, centimeters, millimeters. In the Imperial system, 1 mile = 1,760 yards, 1 yard = 3 feet, and 1 foot = 12 inches. Metric, 1 km = 1000 m.

I lost the nucleus 1 m = 100 cm, 1 cm = 10 mm. Convert between imperial and metric systems, 1 mile = kilometer, 1 yard = meter, 1 foot = meter, 1 inch = centimeter.

The outer diameter and pitch of metric threads are all in millimeters. The outer diameter of an inch thread is measured in inches, and each inch is equal to millimeters. The pitch of an inch thread is measured in how many teeth per inch.

The application of inch threads is basically limited to pipe threads, so there is no need to discuss the issue of substitution. In particular, fastener threads can no longer see inch threads.

DN15, DN20, DN25 are the outer diameters. The diameter of the four-tube and six-tube and the one-inch tube.

1 inch = mm = 8 cents.

1 2 is a quarter (4 cents) dn15

3 4 is six (6 British points) DN20

2. DN8

4. DN15

6. DN20

1′ dn25

dn32dn40

2′ dn50

dn653′ dn80

4′ dn100

5′ dn125

6′ dn150

8′ dn200

10′ dn250

12′ dn300

The metric system calculates the dimensions in millimeters, and the imperial system calculates the dimensions in inches. The basic units of the metric system are kilograms and meters, which are adopted by the European continent and most countries in the world, and are formulated and published by the International Organization of Standards and Metrology on the basis of the metric system. The imperial base unit is the pound and the yard, which is used in the Commonwealth countries, while the UK law requires commercial retail to use the metric system.

Origin of the imperial system:

The imperial system is a system of units of measurement prescribed by the British Empire in its Measure and Length Act of 1824, and was widely used in the Commonwealth countries until 1959, when the British legislation established the International Unit as a standard of digits.

The imperial system was based on the Roman Empire's system of measurements. As a relatively old measurement system, most of the imperial units have strong agricultural application significance. For example, an inch is about the length of three barleys.

One pound is equal to 7,000 times the weight of barley drawn from an ear of wheat. A gallon is the volume of 10 pounds of water and so on.

Difference Between Metric and Imperial

1. Metric units are measured in millimeters, and imperial units are measured in inches.

2. The imperial system is a system of weights and measures that originated in the United Kingdom. In order to distinguish it from the metric system or traditional Chinese units, the word "English" is often added before the unit; The metric system, also known as the "rice system", is an international weights and measures system that flowed into China after the signing of the Sino-French Trade Statute in 1858, and was founded in France. <>