How to convert gallons to quarts
Gallons and Quarts both measure volume, so converting is a single multiplication. One gal equals 3.999998 qt, so you multiply your gallons value by 3.999998.
Formula: quarts = gallons × 3.999998. For example, 10 gal = 39.999979 qt.
Gallons to Quarts conversion table
| Gallons (gal) | Quarts (qt) |
|---|---|
| 1 | 3.999998 |
| 2 | 7.999996 |
| 5 | 19.999989 |
| 10 | 39.999979 |
| 25 | 99.999947 |
| 50 | 199.999894 |
| 100 | 399.999789 |
| 1,000 | 3,999.997887 |
Gallons and Quarts explained
Gallons (gal): A US liquid measure of about 3.785 litres (four quarts).
Quarts (qt): A US liquid measure of about 946 ml (two pints).
When you'd convert gallons to quarts
You'll convert gallons to quarts whenever a measurement is given in one unit but you need it in the other — comparing gallons and quarts figures across regions, following a recipe or spec, or double-checking a number. Because 1 gal is exactly 3.999998 qt, the result is precise every time.
Frequently asked questions
How many quarts are in a gallon?
One gal equals 3.999998 qt. Multiply your gallons figure by 3.999998 to get quarts.
What is the formula to convert gallons to quarts?
quarts = gallons × 3.999998. The factor 3.999998 is exact.
What is 2 gallons in quarts?
2 gal = 7.999996 qt. You can enter any value in the converter above to get an instant result.
Is this Gallons to Quarts converter accurate?
Yes. It uses the standard conversion factor (1 gal = 3.999998 qt) defined by NIST Handbook 44 / US customary liquid measures, so results are exact to several decimal places.