What is the difference between cm and km

This definition is subject to change, but the relationship between the meter and the kilometer will remain constant. Current use: It is currently the official unit of measurement for expressing distances between geographical places on land in most of the world.

However, there still remain a number of countries that primarily use the mile instead of the kilometer including the United States and the United Kingdom UK. Unlike the United States, the UK has adopted the metric system; while the metric system is widely used in government, commerce, and industry, remnants of the imperial system can still be seen in the UK's use of miles in its road systems. In the metric system, "centi" is the prefix for 10 Centimeters can be abbreviated as cm ; for example, 1 centimeter can be written as 1 cm.

Metric rulers typically have 30 cm, which are represented by 30 large tick marks. To get a rough idea of the actual length of a centimeter, a standard pencil is just about 1 cm thick. We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs.

In the mid 19th century the kilometer was already in everyday use in the Italy and in Netherlands and the myriametre was still in use in France. The CIPM The International Committee for Weights and Measures officially abolished the prefix "myria-" and the "myriametre" in , leaving the kilometer as the recognised unit of length instead of myriametre.

Where it's used:. The kilometer is commonly used on road signs to indicate the distance to travel to a given location, on maps to indicate scale, for odometer indication in automotive industry.

Our inch fraction calculator can add centimeters and kilometers together, and it also automatically converts the results to US customary, imperial, and SI metric values.

Centimeters and kilometers are both units used to measure length. Keep reading to learn more about each unit of measure. The centimeter, or centimetre, is a multiple of the meter , which is the SI base unit for length. In the metric system, "centi" is the prefix for 10