Skill: Convert customary length units

Explanation and Free Practice Resources

Converting customary length units means preserving a length while expressing it with a different-sized unit, using relationships such as 12 inches = 1 foot, 3 feet = 1 yard, and 5,280 feet = 1 mile. Learners determine whether to multiply or divide by the conversion factor, track units in equations or conversion tables, and interpret equivalent whole-number, fraction, or decimal measures; this scope excludes metric conversions and more advanced unit-conversion formulas for area, volume, or rates.

On this page:

Learn “Convert customary length units” with a detailed explanation of the concept
Master “Convert customary length units” with unlimited, free practice problems
Download (or modify) a free worksheet on Convert customary length units you can use at home or in class with practice problems that scaffold and explore “Convert customary length units” from different perspectives.
Start working on adaptive units like “Measurement - Unit Conversion Intro - Customary” or “Measurement - Units Intro - Customary” that introduce, teach, or practice “Convert customary length units” to maximize your learning.

Detailed Explanation: Convert customary length units

To convert a length, use a conversion fact that shows how the units are related.

For example:

1\text{ yard}=3\text{ feet}

If you change from a larger unit to a smaller unit, multiply because more smaller units fit inside the same length.

Example: Convert $4$ yards to feet.

Use the conversion factor:

4\text{ yards}\times\frac{3\text{ feet}}{1\text{ yard}}

The word “yards” cancels, leaving feet:

4\times 3=12\text{ feet}

So,

\boxed{4\text{ yards}=12\text{ feet}}

The length did not change; it is just described using smaller units.

Learn by doing: Convert customary length units

Click a topic below to practice the foundational skills you'll need, learn the steps, or master this skill

Your results

Practice with unlimited practice problems

Measurement Conversion - Customary Length Units with Sub Units

Earned ?

Download/Modify Free Grade 5 'Convert customary length units' Worksheet

Print this free 'Convert customary length units' worksheet to practice this skill away from the computer. Click 'Modify' to easily customize this worksheet to your exact needs.

Units Teaching This Skill

These adaptive units introduce, teach, or reinforce this skill (Convert customary length units) through scaffolded problems that grow in difficulty as concepts are understood.