US Customary (Standard) System for Capacity, Volume, 3D Space

US Capacity Volume Measurement Chart

Liquid Measurement (US Customary System):

  • 16 oz = 1 pint; 2 pints = 1 quart; 4 quarts = 1 gallon

Liquid Measurement (Metric System):

  • 1 Liter = 1 quart + 2 oz
  • 1 Liter = 1000 mL

Abbreviations: oz = ounces, L = liter, mL = milliliter

Units for smaller volumes:

  • 1 Tablespoon = 1/2 oz
  • 1 teaspoon = 1/6 oz

Can you show why: 3 teaspoons = 1 Tablespoon?

Note: in the US Customary (Standard) System of measurement, ounces are used twice.

  • They are used to refer to capacity (volume, 3D) measurements and are sometimes called liquid ounces. 16 oz = 1 pint
  • They are used to refer to weight. 16 oz = 1 pound

And just to make it fun, 1 oz of liquid water does weigh about 1 oz.

 

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