Table of Contents

## Introduction to US Standard Length

A US standard length is a unit of measurement that is defined by the US National Institute of Standards and Technology (NIST). A US standard length is equal to exactly 1,760 yards, or exactly 5,280 feet.

A US standard length is used to measure distances between objects, and it is particularly common in the United States for measuring distances on land. In addition to its use in the United States, a US standard length is also commonly used in other countries that use the imperial system of measurement.

Measuring how long things are, how tall they are, or how far apart they might be are all examples of length measurements.

Example: This fork is 8 inches long

These are the most common measurements:

**Inches****Feet****Yards****Miles**

Small units of length are called **inches**.

The last joint of your finger or thumb is about 1 inch (depending on how big your fingers are!).

An inch is defined as exactly **2.54 centimeters**

Lots of things are measured in inches from rainfall to paper length.

Measuring in inches gives us a way for everyone to understand the size of something.

When we have 12 inches together, it is known as a **foot**.

1 foot = 12 inches

A long time ago, people used their feet to measure things. But everyone has different sized feet so it did not work very well.

Using 12 inches put together to make one foot lets everyone have an accurate picture of what exactly a “foot” of length is.

When 3 feet are together, it is called a **yard**.

(This isn’t the same thing as a garden, though they are both referred to as a “yard”!)

1 yard = 3 feet The length of this guitar is about 1 yard.

When we put together 1,760 yards, we have a **mile**.

1 mile = 1,760 yards = 5,280 feet

Miles are long distances and are mostly used to measure the distance between places which are far away from each other. Most people refer to miles when they are driving, biking or jogging.

To remember how many feet in a mile think:

*Five tomato
Five two eight oh
5,280 feet in a mile*

Final thoughts about measuring length:

1 foot = 12 inches

1 yard = 3 feet = 36 inches

1 mile = 1,760 yards = 5,280 feet = 63,360 inches

## Miles to Kilometers

Miles to Kilometers conversion is a process of converting units of distance from miles to kilometers. 1 mile is equal to 1.609 kilometers.

## How Much is an Inch?

An inch is a unit of measurement that is equal to one twelfth of a foot. It is abbreviated as “in.”

## Yard to Inches

There are 36 inches in a yard.