How it's calculated
gal = qt ÷ 4 (qt = gal × 4)
gal = gallons, qt = quarts. 1 US gallon = 4 quarts, so divide quarts by 4 (or multiply gallons by 4 to reverse).
Common values
| Quarts | Gallons |
|---|---|
| 1 | 0.25 |
| 2 | 0.5 |
| 4 | 1 |
| 8 | 2 |
| 16 | 4 |
Common questions
How many quarts are in a gallon?
Four quarts make one gallon in both the US and imperial systems.
Is a US gallon the same as a UK gallon?
No. The imperial gallon is about 20% larger, so a US quart and an imperial quart differ in absolute size even though the 4-to-1 ratio holds.