Q:
# What Is a Decimeter on a Ruler?

**A decimeter, abbreviated "dm", is a metric unit of length.** It is defined as one tenth of a meter. One decimeter is equivalent to 3.93700787 inches.

To convert a measurement in decimeters to inches, you multiply the length in dm by 3.93700787. Generally it's okay to just use 3.94. So, if you measure an object with a ruler, and it's 3 dm long, the length in inches is 3.94 x 3 = 11.82 inches. You can perform the conversion with some calculators or do an online search for "length unit calculator" to find a web-based conversion tool. Apps are available that allow you to perform the conversion with a smartphone.

Learn more about Measurements-
Q:
## What Is Considered a Full-Size Ruler?

A: 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 ... Full Answer >Filed Under: -
Q:
## How Do You Read a Ruler in Inches?

A: Read the length of an object by counting the whole-inch markers in between the ruler's zero-inch line and the object's end and then measuring the fraction ... Full Answer >Filed Under: -
Q:
## How Much Is a Centimeter on a Ruler?

A: 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.... Full Answer >Filed Under: -
Q:
## How Many Inches Is 25mm?

A: According to the Oxford Dictionaries, one millimeter is a unit of measure for length that is equal to 0.039 inches. Therefore, 25 millimeters is equal to 2... Full Answer >Filed Under: