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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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## 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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## Which is larger, CM or MM?

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Full Answer >**A centimeter is larger than a millimeter.**In the metric system, 1 centimeter is equal to 10 millimeters. To find the answer, one also can compare both of these measurements to the meter.Filed Under: -
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## How long is 3 centimeters?

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Full Answer >**A centimeter is the equivalent of 25/64 inch, and 3 centimeters is the equivalent of 1 3/16 inches.**Centimeters are the smallest unit of the metric system, which is a widely used measurement system that has been adopted around the globe. The United States is the only industrialized nation in the world that has yet to adopt the metric system as its own, although it was officially sanctioned for use in 1866.Filed Under: