Customary Units of Measurement

Measuring Length

The Customary System using inches, feet, yards, and miles to measure length.




Converting units of measure

When converting a small unit of measure to a large unit of measure, you need to DIVIDE

48 inches = ?? feet

Since there are 12 inches in 1 foot, DIVIDE 48 by 12

48 / 12 = 4

So 48 inches = 4 feet

When converting large units of measure to small units of measure, you need to MULTIPLY

6 yards = ?? feet

Since there are 3 feet in 1 yard, multiply 6 x 3

So 6 yards = 18 feet


Customary Units of Weight

Ounces (Oz)
Pounds (lb)
Tons (T)

16 Oz = 1 lb

2000 lbs = 1 T

Customary Units of Capacity

Cups (c)
Pints (pt)
Quarts (qt)
Gallons (gal)



2 cups = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon


Units of Time