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# How much is a centimeter on a ruler?

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### 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.

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Q:
## What is considered a full-size ruler?

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Full Answer >**A standard full size ruler measures 12 inches in length.**In addition to the marks for inches, many rulers also include a scale of 30 centimeters, allowing metric measurements.Filed Under: -
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## What is a metric ruler used for?

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Full Answer >**A metric ruler is used to measure the length, height and width of an object or the distance between two points, objects or places.**Depending on the length of the metric ruler, it can be divided into millimeters, centimeters, decimeters or meters.Filed Under: -
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## What is a millimeter on a ruler?

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Full Answer >**A metric ruler is used to measure things in centimeters and millimeters with 1 centimeter equaling 10 millimeters, so a ruler will have 10 tiny millimeter lines between each centimeter to denote the millimeter.**This can be seen by looking at the ruler and seeing the longer lines on the ruler, which are centimeter marks, and the shorter lines on the centimeter, which are millimeter marks.Filed Under: -
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## How big is a centimeter?

A:A centimeter is 10 millimeters, or approximately the width of a fingernail. Another way to imagine the size of a centimeter is in relation to inches. One centimeter is approximately three times smaller than an inch.

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