Gallon (US) to Quart (US) Converter
Unit Converter
Instant · Precise · Universal
47 units available
6 categories total
How to Convert Gallon (US) to Quart (US)
To liters: multiply by 3.785. To UK gallons: multiply by 0.832674. To cubic meters: multiply by 0.003785.
1 US gal = 4 US qt = 8 US pt = 16 US cups = 128 US fl oz = 3.785411784 L.
For example, 1 Gallon (US) (gal (US)) = 4 Quart (US) (qt (US)).
Gallon (US) to Quart (US) — Common Values
| Gallon (US) (gal (US)) | Quart (US) (qt (US)) |
|---|---|
| 0.1 | 0.4 |
| 0.5 | 2 |
| 1 | 4 |
| 2 | 8 |
| 5 | 20 |
| 10 | 40 |
| 25 | 100 |
| 50 | 200 |
| 100 | 400 |
| 500 | 2000 |
| 1000 | 4000 |
About Gallon (US) (gal (US))
Definition
The US gallon is a unit of volume equal to 128 US fluid ounces, or approximately 3.785 liters, used for large liquid volumes.
Mathematical Relationship
1 US gal = 4 US qt = 8 US pt = 16 US cups = 128 US fl oz = 3.785411784 L.
Conversion Formula
To liters: multiply by 3.785. To UK gallons: multiply by 0.832674. To cubic meters: multiply by 0.003785.
Practical Applications
Fuel prices ($/gal), milk jugs, water cooler bottles, swimming pool chemicals, and paint quantities.
Interesting Facts
The US gallon is smaller than the UK gallon: 3.785 L vs. 4.546 L. This means UK fuel economy figures look better by number!
Common Mistakes
Confusing US and UK gallons — UK gallons are 20% larger. Fuel economy (mpg) differs significantly between the two systems.
Educational Tips
1 gallon ≈ 3.8 liters ≈ a large milk jug. 4 quarts = 1 gallon. A gallon of water weighs about 8.3 pounds.
About Quart (US) (qt (US))
Definition
The US liquid quart is a unit of volume equal to 32 US fluid ounces, or approximately 946.353 milliliters.
Mathematical Relationship
1 US qt = 2 US pt = 4 US cups = 32 US fl oz = 1/4 US gallon ≈ 946.353 mL.
Conversion Formula
To liters: multiply by 0.946353. To mL: multiply by 946.353. To UK quarts: multiply by 0.832674.
Practical Applications
Buying motor oil (sold by the quart), milk containers, paint coverage calculations, and cooking large recipes.
Interesting Facts
A US quart is slightly less than 1 liter (946 mL vs. 1,000 mL). Saying 'a quart is about a liter' is a useful rough approximation.
Common Mistakes
Assuming a quart equals a liter — it's close but 5.4% smaller. When substituting in recipes, this error accumulates.
Educational Tips
A quart is roughly a liter. 'Quart' comes from 'quarter' — it's 1/4 gallon. Chain: 4 cups → 2 pints → 1 quart → 1/4 gallon.