How long is 150 mm in cm

The definition of the meter has changed over time, the current definition being based on the distance traveled by the speed of light in a given amount of time. The relationship between the meter and the millimeter is constant however.

Prior to this definition, the meter was based on the length of a prototype meter bar. In , the meter has been re-defined based on the changes made to the definition of a second.

Definition: A centimeter symbol: cm is a unit of length in the International System of Units SI , the current form of the metric system. Metric prefixes range from factors of 10 to 10 18 based on a decimal system, with the base in this case the meter having no prefix and having a factor of 1.

Learning some of the more commonly used metric prefixes, such as kilo-, mega-, giga-, tera-, centi-, milli-, micro-, and nano-, can be helpful for quickly navigating metric units. Current use: The centimeter, like the meter, is used in all sorts of applications worldwide in countries that have undergone metrication in instances where a smaller denomination of the meter is required. The millimetre is part of a metric system.

A corresponding unit of area is the square millimetre and a corresponding unit of volume is the cubic millimetre. A centimetre American spelling centimeter, symbol cm is a unit of length that is equal to one hundreth of a metre, the current SI base unit of length.

A centimetre is part of a metric system. It is the base unit in the centimetre-gram-second system of units. A corresponding unit of area is the square centimetre. A corresponding unit of volume is the cubic centimetre. The centimetre is a now a non-standard factor, in that factors of 10 3 are often preferred. However, it is practical unit of length for many everyday measurements. A centimetre is approximately the width of the fingernail of an adult person.

You can find metric conversion tables for SI units, as well as English units, currency, and other data.