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## MAP Recommended Practice

### Course: MAP Recommended Practice>Unit 26

Lesson 8: Converting US customary units

# US Customary units of length review (in, ft, yd, & mi)

Review the size of inches, feet, yards, and miles and how to convert between them.  Then, try some practice problems.

## Summary of customary units of distance

InchesFeetYardsMiles
$63,360$$5,280$$1,760$$1$
$36$$3$$1$$\frac{1}{1,760}$
$12$$1$$\frac{1}{3}$$\frac{1}{5,280}$
$1$$\frac{1}{12}$$\frac{1}{36}$$\frac{1}{63,360}$

## What is distance?

Distance measures length. For example, the length of a snake is how long the snake is.
In the US customary system of measurement, the most common units of distance are inches, feet, yards, and miles.

### How big are customary units of distance?

The length of a quarter is about $1$ inch.
The length of a man's shoe is about $1$ foot.
The length of a guitar is about $1$ yard.
The length of a runway at a large airport is about $1$ mile.

## Practice set 1: Estimating distance

Problem 1A
Identify the most reasonable unit to measure the length of a banana.

Want to try more problems like this? Check out this exercise.

## Converting larger units to smaller units

To convert larger units to smaller units we multiply the number of larger units by the green conversion factor for the appropriate smaller units.
Example: Converting feet to inches

## Converting smaller units to larger units

To convert smaller units to larger units we divide the number of smaller units by the green conversion factor for the appropriate larger units.
Example: Converting inches to feet
Example: Converting yards to miles

## Practice set 2: Converting distance units

Problem 2A
Convert.
$3$ yards $=$
inches

Want to try more problems like this? Check out these exercises:
Convert larger units to smaller units
Converting between units

## Want to join the conversation?

• the fastest way to find how many in in a mile is to find how many feet are in mile and multiply that by 12.
• how do i know how much a mile is?
• This is something that you will probably want to memorize. A mile is 5280 feet.

Once you have that in your memory, you can then use math to determine how many yards a mile is and all sorts of other measurements.
• how a nice educational program
• Thank You! this is really helpful but is there a faster way or less confusing way
• I find the metric system is easier and faster, because its all based on tens
• I am from Australia and never use "miles" for driving, converting or just about ANYTHING!
Anything I should know about when using miles for anything?

Thanks, sincerely Patrick.
• uh miles are the same thing as kilo i think btw why u so formal
• Is there anything smaller than a millemeter
• The micro-, nano-, picto-, and femto- are all prefixes that indicate sizes smaller than the milli-.
• How did they come up with this system of measurement?
• how is 98 cups = to 49 pints.
• if there are two cups in one pint, and you have 49 pints you would do 49 x 2 which is 98.