Skip to content

Convert Units of Length

Students learn to convert between different units of length within the same measurement system (e.g., inches to feet, centimeters to meters). They apply known conversion factors to rewrite measurements in equivalent forms.

Try three of them

Real questions from this skill, graded here. No account, and nothing is saved.

Convert Units of Length

Grade 5 · Measurement Conversions · question 1 of 3

0 of 20

20 rungs. A star at the top.

6 feet = ___ yards.

How it is taught

0:00 of 4:38

A length can be renamed with another unit in the same system.

Smaller units make a larger number for the same distance.

Read it: Find the factor, then convert

1 gallon is 4 quarts, so 2 gallons are 8 quarts and 3 gallons are 12 quarts. The quarts row is the gallons row times 4: 6 gallons are 6 × 4 = 24 quarts.

  1. Find the factor: how many quarts make 1 gallon. Here it is 4.
  2. From a big unit to a small one there are more of them, so multiply by the factor.
  3. From a small unit to a big one there are fewer, so divide: 24 quarts ÷ 4 = 6 gallons.

A gallon holds more than a quart, so it takes 4 quarts to hold as much as 1 gallon.

Each gallon more adds 4 quarts more, so every column of the table is times 4.

Two steps work the same way: 1 gallon is 4 quarts and 1 quart is 4 cups, so 1 gallon is 4 × 4 = 16 cups.

To change to the smaller unit, multiply by the factor; to change to the bigger unit, divide by it.

Adding the factor instead of multiplying, and saying 2 gallons are 2 + 4 = 6 quarts.

Every gallon is 4 quarts, so 2 gallons are 2 × 4 = 8 quarts.

11 yards = ___ feet — 33. Every yard is 3 feet, so 11 of them is 11 times 3: 33.

3 feet → inches

Imagine a ribbon that's three feet long.

How many inches long is that ribbon?

First, remember our rule: one foot equals twelve inches.

Here are three feet, side by side. Each foot is twelve inches long.

So we have three groups of twelve inches. Time to multiply!

Three times twelve equals thirty-six.

Three feet is the same as thirty-six inches. Length converted!

A 3-foot ribbonHow many inches?3 ft1 ft = 12 in03 ft1 ft2 ft12 in12 in12 in3 × 12 = ?3 × 12 = 36ANSWER36 in= 3 ft
Grade 5 · Converting feet to inches

What you see

While they climb, your page writes one true line to ask about tonight, and a short note each Sunday.

MayaGrade 3 · Mathematics
Did you know?

A chessboard has 64 squares — share them out between the 8 rows and each row holds exactly 8.

Today’s goal
1 star — one skill mastered, every rung of its ladder climbed
Climbing now
Divide within 100

An example student.

MayaGrade 3 · Mathematics

Maya earned 2 stars this week — Interpret multiplication as equal groups, which took 6 answers over 3 days before its star landed 3 days ago and Multiply by 6, 7, 8 and 9. Next up: Divide within 100.

An example week.

More of the library

Practise this skill free

14 days of every skill, practice packets, Fluency sheets and up to four students. No card.

Start free