A unit of capacity equal to 
of a cup. One fluid ounce of water at 62°F weighs about one ounce.
| capacity | The amount of liquid (or other pourable substance) that an object can hold when it's full. |
| cup | A unit of capacity equal to 8 fluid ounces. |
| fluid ounce | A unit of capacity equal to |
| gallon | A unit equal to 4 quarts, or 128 fluid ounces. |
| pint | A unit of capacity equal to 16 fluid ounces, or 2 cups. |
| quart | A unit of capacity equal to 32 fluid ounces, or 4 cups. |