Customary and Metric Units
Yard
Customary (English) system unit of length; 3 feet.
Inch
a customary unit of length, originally established as "the length of 3 barley corns placed end to end."
Metric
a decimal system of measurement used internationally.
U.S. Customary Unit
a standard for measurement, used in the United States.
Ounces
a unit for measuring weight in the English system.
Cup
a unit of capacity in the English system of measurement; 2 cups = 1 pint.
Pints
a unit of capacity in the English system of measurement; 2 cups.
Gallon
a unit of capacity in the customary system of measurement; 4 quarts.
Quarts
a unit of capacity in the customary system of measurement; 8 pints.
Milliliters
a unit of capacity in the metric system of measurement; 1/1000 liter.
Centimeters
a unit of measure of length in the metric system which is 1/100 of a meter.
Kilometers
a unit of measure of length in the metric system; 1000 meters.
Pounds
a unit of measure of weight in the customary (English) system; 16 oz.
Tons
a unit of measure of weight in the customary (English) system; 2000 lbs.
Mass
amount of matter; commonly measured in grams, kilograms, and metric tons.
Liquid Volume
the amount a container can hold; capacity.
Liter
the basic unit of capacity of liquids and gases in the metric system.
Meters
the basic unit of length in the metric system.
Grams
the basic unit of mass in common usage in the metric system.
Weight
the force of gravity acting on an object; can be used to measure mass.
Millimeters
unit of measure of length in the metric system that is 1/1000 of a meter.
Kilograms
unit of measure of mass in the metric system; 1000 grams.
