Definition: A US gallon is a unit of volume equal to 128 US fluid ounces or 4 quarts, 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.
Definition: A US quart is a unit of volume equal to 32 fluid ounces or 4 cups, which is 1/4 of a gallon. It is approximately 0.946 liters.
History/origin: The term 'quart' comes from the Latin word 'quartus', meaning a fourth part.
Current use: Quarts are commonly used in the United States for measuring liquid volumes, especially in cooking and liquid containers like milk jugs.
| Gallons (US gal) | Quarts (US qt) |
|---|---|
| 1.00 | 4.00 |
| 0.50 | 2.00 |
| 0.25 | 1.00 |
| 2.00 | 8.00 |
| 5.00 | 20.00 |
| 10.00 | 40.00 |
| 0.10 | 0.40 |
| 0.01 | 0.04 |
| 3.00 | 12.00 |
| 7.50 | 30.00 |
1 gallon = 4 quarts
Example: convert 3 gallons to quarts:
3 × 4 = 12 quarts