📏 US gallons to US quarts Converter
Convert us gallons (gal) to us quarts (qt) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 us gallon (gal) = 4 us quarts (qt). Formula: qt = gal × 4.
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US gallons to US quarts Converter inputs
Result
US gallons to US quarts conversion table
| US gallons (gal) | US quarts (qt) |
|---|---|
| 0.1 gal | 0.4 qt |
| 0.5 gal | 2 qt |
| 1 gal | 4 qt |
| 2 gal | 8 qt |
| 3 gal | 12 qt |
| 5 gal | 20 qt |
| 10 gal | 40 qt |
| 20 gal | 80 qt |
| 25 gal | 100 qt |
| 50 gal | 200 qt |
| 100 gal | 400 qt |
| 1,000 gal | 4,000 qt |
Other volume conversions
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How to convert us gallons to us quarts
Multiply the number of us gallons by 4 to get us quarts: qt = gal × 4.
Example: 5 gal = 20 qt.
The us gallon (gal) and the us quart (qt) are both units of volume. Need the opposite direction? Use the qt to gal converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many us quarts are in a us gallon?
1 us gallon = 4 us quarts.
How do I convert us gallons to us quarts?
Use the formula qt = gal × 4. For example, 5 gal = 20 qt.
How do I convert us quarts back to us gallons?
1 us quart = 0.25 us gallons. Use the qt to gal converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.