Convert Gallons (US) to Quarts (US)
One gallon (US) equals 4 quarts (us). Type any value to convert gallons (us) to quarts (us) instantly — with a full reference table below.
Convert Gallons (US) to Quarts (US)
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How to convert Gallons (US) to Quarts (US)
To convert gallons (us) to quarts (us), multiply by 4. One gallon (US) equals 4 qt, and one quart (US) equals 0.25 gal.
- Take the value in gallons (us) — for example 7.5 gal.
- Multiply by 4 (the number of quarts (us) in one gallon (US)).
- 7.5 × 4 = 30 qt.
Quick mental estimate: Multiply the number of gallons (us) by 4 — that is exact.
Gallons (US) to Quarts (US) conversion table
| Gallons (US) | Quarts (US) |
|---|---|
| 1 gal | 4 qt |
| 2 gal | 8 qt |
| 3 gal | 12 qt |
| 4 gal | 16 qt |
| 5 gal | 20 qt |
| 6 gal | 24 qt |
| 8 gal | 32 qt |
| 10 gal | 40 qt |
| 12 gal | 48 qt |
| 16 gal | 64 qt |
| 20 gal | 80 qt |
| 24 gal | 96 qt |
| 32 gal | 128 qt |
| 50 gal | 200 qt |
| 100 gal | 400 qt |
| Quarts (US) | Gallons (US) |
|---|---|
| 1 qt | 0.25 gal |
| 2 qt | 0.5 gal |
| 3 qt | 0.75 gal |
| 4 qt | 1 gal |
| 5 qt | 1.25 gal |
| 6 qt | 1.5 gal |
| 8 qt | 2 gal |
| 10 qt | 2.5 gal |
| 12 qt | 3 gal |
| 16 qt | 4 gal |
| 20 qt | 5 gal |
| 24 qt | 6 gal |
| 32 qt | 8 gal |
| 50 qt | 12.5 gal |
| 100 qt | 25 gal |
About converting Gallons (US) to Quarts (US)
Gallons (US) (gal) and Quarts (US) (qt) are both units of volume. The exact factor is 1 gal = 4 qt, so multiply by 4 to go from gallons (us) to quarts (us) (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Quarts (US) to Gallons (US) converter, or the full unit converter for every unit at once.
Real-world volume in gallons (us) and quarts (us)
| Example | Gallons (US) | Quarts (US) |
|---|---|---|
| A US soda can (12 fl oz) | 0.09375 gal | 0.375 qt |
| A wine bottle | 0.198129 gal | 0.792516 qt |
| A US gallon of milk | 1 gal | 4 qt |
| A typical car fuel tank | ≈ 13.2086 gal | ≈ 52.83441 qt |
| A typical bathtub | ≈ 39.62581 gal | ≈ 158.5032 qt |
“≈” marks typical values; the rest are defined or measured figures.
The units
The US liquid gallon: 231 cubic inches, exactly 3.785411784 L. (The UK imperial gallon is larger: 4.54609 L.)
Used for: US fuel and milk.
A quarter of a US gallon, exactly 0.946352946 L.
Used for: US cooking, motor oil and ice cream.
US customary volumes are exact by definition: the US gallon is 231 cubic inches, which is exactly 3.785411784 litres.