Convert yard to kilometer

Symbol

The yard is represented by the symbol “yd.”

Description

The Yard is a widely used unit of length in both the British imperial and US customary systems of measurements. It equals 3 feet or 36 inches. On the other hand, a distance of 1760 yards is equal to 1 mile. 

For yard to meter conversion, one yard is equivalent to 0.9144 meters. There are 0.0109 yards in a centimeter. In the other direction, a yard is equivalent to 91.44 centimeters. So for yard to cm conversion, divide yard measure by 91.44..

Moving on to area calculations now. There are 4840 square yards in an acre. So, a square yard is equivalent to 1/4840 acres.

The word yard is derived from the Old English gerd, gyrd, etc. It is a common unit of linear measure in English-speaking countries. Old and Middle English both used their forms of "yard" to denote surveying lengths of 15 feet (4.6 m) or 16.5 feet (5.0 m). It is commonly used in computing acres.

History

The yard measure's origins are not uncertain. The term “yard” was first used in the 12th century. It was defined by English King Henry I as the distance between his nose and the thumb of his extended arm.

After many other definitions, in 1855, the Weights and Measures Act officially recognized a new standard based on Baily's metal No. 4. From 1845 and 1855, 40 standards of yard were formed, one of them was the imperial standard.

After so many changes, in 1959, the yard that is now known as the international yard was defined as 0.9144 meters. The imperial standard in 1855 was renamed as the United Kingdom Primary Standard Yard.

Use

Yard line in American football is one great example of where yard is used. It is mostly used for field length measurements and other length measurements. In many parts of the world yard is used to measure clothing items.

Symbol

Kilometer is frequently represented by the symbol ‘km’. In the US, UK, and Canadian militaries, the word "klick" is a slang term of the kilometer.

Description

Kilometer is a unit of length in the International System of Units (SI). It is equal to one thousand meters. The kilometer is the preferred measurement unit to express distances between geographical places on land in most of the world. The United States and the United Kingdom are the notable exceptions where the statute mile is used.

A kilometer is equivalent to one thousand meters. So, one kilometer can be written in scientific notations as 1×10^3 m (engineering notation) or 1 E+3 m (exponential notation) — both meaning 10^3 × 1 m.

There are 0.621 statute miles in a kilometer. This means 1 statute mile is equivalent to 1.60934 kilometers. So to convert mile to km, multiply the mile with 0.621.

A kilometer is also equivalent to 3281 feet. In reverse, 1 foot equals 1/3281 kilometers. For calculation of km to yd (kilometer to yards), remember that there are 1094 international yards in a kilometer. If you want to convert nautical miles to km, then multiply kilometer value by 0.540.

History

The term kilometer was first used in the 1800s. It was introduced during the development and adoption of the metric system of weights and measures in France in the late 1700s.

The term "myriamètre"(preferring 10,000 meters) was used several times in 1802. It was used in the text of Develey's book Physique d'Emile: ou, Principes de la science de la nature.

It was first recorded as "kilometer' in 1800-1810. In 1835, French maps were published in which scales are shown in kilometers. The term "kilometer" first became an official unit in 1867  in the Netherlands representing 1000 meters.

Finally, the prefix "myria-" and the associated "myriametre" were officially removed by the International Committee for Weights and Measures (CIPM) in 1935, designating the term "kilometer" as the accepted unit of length for measurements.

Use

This is the go-to unit for expressing land distances, road length etc.