A: ### Quick Answer

**Most standard rulers are 30 centimeters long, which makes 1 centimeter equal to one-thirtieth of the length of a standard 12-inch, or 30-centimeter, ruler.** The centimeter is a metric unit of measure that, according to Metric-Conversions, is equal to 0.3937 inches.

The centimeter is a standard unit of measure of length in the metric system, and it is equal to one one-hundredth of a meter. If a meter stick is divided into 100 equal pieces, each one of the pieces is measured as 1 centimeter in length. Inches are a comparable unit of measure of length in the English system. A single inch is equivalent to 2.54 centimeters, so length in inches can be converted to centimeters by multiplying the inches measured by 2.54.

According to Dictionary.com, the word "centimeter" has been in use since the 1800s. It comes from the French word "centum," which means "hundred," and the root of the word is "meter." The standard abbreviation for the word "centimeter" is "cm." Most rulers also show each centimeter sub-divided into 10 smaller, equal portions. These indicate the length of 1 millimeter, which is equal to one one-thousandth of a meter. There are 25.4 millimeters in a single inch.

Learn more about Measurements- Q:
## How do you measure length, width and height?

A:You can measure the length, width and height of any object by using a measuring device, such as a ruler or tape measure. Laying the object on a flat surface also helps to get more accurate figures.

Full Answer >Filed Under: - Q:
## What is the difference between milliliters and cubic centimeters?

A:

Full Answer >**The milliliter is based on the liter, which is not a standard unit in the SI system, while the cubic centimeter is a derived unit from the SI standard unit of length, the meter.**Both contain the same volume.Filed Under: - Q:
## When measuring the length of a pencil do you use mm or cm?

A:

Full Answer >**When measuring the length of a pencil, centimeters are used rather than millimeters because a pencil is more than a centimeter long.**Millimeters are used when measuring lengths that are less than a centimeter, such as a pencil's width.Filed Under: - Q:
## How does a metric scale ruler work?

A:

Full Answer >**Metric scale rulers commonly use meters, centimeters and millimeters to measure distance, and each measurement is broken down using multiplications of 10.**Ten millimeters equal a centimeter and 100 centimeters equal a meter, allowing for simple measurement of distance with no complex mathematical equations required.Filed Under: