Definition: A US cup is a unit of volume used in cooking measurements, equal to 8 fluid ounces or about 236.588 milliliters.
History/origin: The cup measurement originated from early English cooking measures and was standardized in the US.
Current use: The cup is commonly used in the United States and Canada for cooking and serving sizes.
Definition: A US gallon is a unit of volume equal to 128 US fluid ounces or 16 US cups, approximately 3.785 liters.
History/origin: The term 'gallon' comes from the Old Northern French word 'galon'. It has different definitions in the US and UK systems.
Current use: Gallons are commonly used in the United States for larger volumes of liquids such as milk, gasoline, and water.
| Cups (US cup) | Gallons (US gal) |
|---|---|
| 1.00 | 0.063 |
| 0.50 | 0.031 |
| 0.25 | 0.016 |
| 2.00 | 0.125 |
| 5.00 | 0.313 |
| 10.00 | 0.625 |
| 0.10 | 0.006 |
| 0.01 | 0.001 |
| 3.00 | 0.188 |
| 7.50 | 0.469 |
1 gallon = 16 cups
Example: convert 32 cups to gallons:
32 ÷ 16 = 2 gallons