How quarts to gallons are calculated
A gallon is exactly four quarts in every system, so the conversion is a division by four.
gallons = quarts ÷ 4 (1 US gallon = 3.785412 litres)
- A gallon is four quarts in every system — US liquid, Imperial and dry. The quart is the part that changes size.
- Divide your quarts by 4 for gallons, or multiply your gallons by 4 to go back.
- A US liquid quart is 0.946353 litres, so a US gallon is 3.785412 litres.
- An Imperial quart is 1.136523 litres, so a UK gallon is 4.54609 litres — about a fifth more than the US one.
Worked example — 10 US quarts ÷ 4 = 2.5 US gallons, which is 9.46 litres, or 20 US pints.
Common amounts converted
| Quarts (US) | Gallons | Litres | Pints |
|---|---|---|---|
| 1 qt | 0.25 gal | 0.95 L | 2 pints |
| 2 qt | 0.5 gal | 1.89 L | 4 pints |
| 4 qt | 1 gal | 3.79 L | 8 pints |
| 6 qt | 1.5 gal | 5.68 L | 12 pints |
| 8 qt | 2 gal | 7.57 L | 16 pints |
| 12 qt | 3 gal | 11.36 L | 24 pints |
| 16 qt | 4 gal | 15.14 L | 32 pints |
| 20 qt | 5 gal | 18.93 L | 40 pints |
| 40 qt | 10 gal | 37.85 L | 80 pints |
Swipe the table sideways to see the rest.
To go the other way, switch the converter above to Gallons → quarts.
Things to consider
- A UK gallon is 4.546 litres and a US gallon 3.785, so a recipe or paint tin from the other side of the Atlantic needs the matching system.
- Paint coverage is quoted per gallon, and a US gallon is 17% less than a UK one — check which is meant before you buy.
- A quart is two pints and four cups, so a 3-quart saucepan holds about 6 pints or 12 US cups.
- Dry quarts, sold for berries and grain, are a larger unit again — this page converts liquid volume.
Frequently asked questions
Is a gallon 4 quarts?
Yes. Every gallon is exactly four quarts — US, Imperial and dry. Only the size of the quart changes between systems.
Is a US gallon the same as a UK gallon?
No. A US gallon is 3.785 litres and a UK (Imperial) gallon is 4.546 litres, so the UK one is about 20% larger.
What is 8 quarts in gallons?
2 gallons, which is 7.57 litres in US liquid measures.
How many cups is a gallon?
16 cups — a gallon is four quarts and a quart is four cups in both US and Imperial measures.
How do I turn gallons back into quarts?
Multiply the gallons by 4, or switch this converter to Gallons → quarts.
Results are estimates for general information only, not financial, medical or professional advice.