Gallon (US) to Quart (US)Converter
Instantly convert Gallon (US) (gal) to Quart (US) (qt). Free, accurate, and easy to use.
How to Convert Gallon (US) to Quart (US)
To convert Gallon (US) (gal) to Quart (US) (qt), multiply your value by 3.99999789.
Example: 5 gal × 3.99999789 = 19.99998943 qt
What is a Gallon (US)?
The US liquid gallon equals 128 fluid ounces, 8 pints, or approximately 3.785 liters. It is the standard unit for fuel, water, and large liquid volumes in the United States. The UK imperial gallon is larger at approximately 4.546 liters — about 20% more. The gallon difference is a common source of confusion for international recipes and fuel economy figures.
What is a Quart (US)?
The US liquid quart equals 32 fluid ounces, 2 pints, or approximately 946.353 milliliters. It is used for motor oil, large recipe volumes, and bottled beverages in the United States. The UK quart equals 2 imperial pints, approximately 1.137 liters. Four US quarts make one US gallon.
Gallon (US) to Quart (US) Conversion Table
| Gallon (US) (gal) | Quart (US) (qt) |
|---|---|
| 0.001 gal | 0.004 qt |
| 0.01 gal | 0.03999998 qt |
| 0.1 gal | 0.39999979 qt |
| 0.5 gal | 1.99999894 qt |
| 1 gal | 3.99999789 qt |
| 2 gal | 7.99999577 qt |
| 5 gal | 19.99998943 qt |
| 10 gal | 39.99997887 qt |
| 20 gal | 79.99995773 qt |
| 50 gal | 199.99989433 qt |
| 100 gal | 399.99978866 qt |
| 200 gal | 799.99957732 qt |
| 500 gal | 1999.99894331 qt |
| 1000 gal | 3999.99788662 qt |
| 5000 gal | 19999.98943312 qt |
| 10000 gal | 39999.97886624 qt |
| 50000 gal | 199999.89433119 qt |
| 100000 gal | 399999.78866237 qt |
| 1000000 gal | 3999997.8866237 qt |
| 1000000000 gal | 4.0000e+9 qt |
Frequently Asked Questions
How do I convert Gallon (US) to Quart (US)?
Multiply the Gallon (US) value by 3.99999789. Formula: qt = gal × 3.99999789. Example: 10 gal = 39.99997887 qt.
How many Quart (US) are in one Gallon (US)?
One Gallon (US) (gal) equals 3.99999789 Quart (US) (qt).
How many Gallon (US) are in one Quart (US)?
One Quart (US) (qt) equals 0.25000013 Gallon (US) (gal).
What is the exact conversion factor from Gallon (US) to Quart (US)?
The conversion factor is 3.99999789. Multiply any gal value by this number to get qt. For the reverse, multiply by 0.25000013.
How do I convert Quart (US) back to Gallon (US)?
Divide by 3.99999789, or equivalently multiply by 0.25000013. Formula: gal = qt ÷ 3.99999789.
Is the Gallon (US)-to-Quart (US) conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 3.99999789 is exact and universally agreed upon.