Gallons to Quarts Converter
Convert gallons to quarts, and any of gallons, quarts, pints, cups, fluid ounces and milliliters to the others, using US liquid measures.
Results
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Quick Answer
There are 4 quarts in a gallon, so multiply gallons by 4 to get quarts: 2 gal is 8 qt, 1.5 gal is 6 qt and half a gallon is 2 qt. To turn quarts into gallons, divide by 4: 10 qt is 2.5 gal. A gallon is also 8 pints, 16 cups and 128 fluid ounces, or 3.785 liters.
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Table of Contents
- Gallons to Quarts Converter
- Quick Answer
- Related Calculators
- How This Gallons to Quarts Converter Works
- How to Use the Gallons to Quarts Converter
- Gallon and Quart Formulas
- Key Terms
- Worked Example
- Real-Life Examples
- Gallon vs Quart
- Gallons to Quarts Chart
- The Gallon Family
- Common Mistakes to Avoid
- Frequently Asked Questions
- References & Sources
How This Gallons to Quarts Converter Works
Milk, paint, motor oil, stock and canning recipes come in gallons, quarts and pints, and it is easy to lose track of how they fit together. Choose the unit you have, enter the amount and press Calculate. The converter shows the same volume in gallons, quarts, pints, cups and fluid ounces, plus milliliters and liters.
Quick explanation: each step down doubles: 1 gallon = 4 quarts = 8 pints = 16 cups.
- gal to qt: multiply by 4.
- qt to gal: divide by 4.
- gal to cups: multiply by 16.
How to Use the Gallons to Quarts Converter
- Choose the unit you have: gallons, quarts, pints, cups, fluid ounces or mL.
- Enter the amount.
- Press Calculate.
- Read the same volume in every unit.
Gallon and Quart Formulas
- Gallon: 1 gal = 4 qt = 8 pt = 16 cups = 128 fl oz
- Quart: 1 qt = 2 pt = 4 cups = 32 fl oz = 946.4 mL
- Quarts from gallons: qt = gal × 4
- Gallons from quarts: gal = qt ÷ 4
- Metric: 1 gal = 3.785411784 L exactly
Key Terms
- Gallon (gal): 231 cubic inches, 3.785 L.
- Quart (qt): a quarter of a gallon.
- Pint (pt): half a quart, 16 fl oz.
- Cup: half a pint, 8 fl oz.
- Fluid ounce (fl oz): 1/128 of a gallon, 29.57 mL.
Worked Example
A soup recipe makes 1.5 gallons. How many 1-quart containers do you need, and how many cups is that?
- 1.5 × 4 = 6 quarts, so 6 containers
- 1.5 × 16 = 24 cups, or 12 two-cup servings
- In liters: 1.5 × 3.785 = 5.68 L
Going the other way, 10 quarts of oil is 10 ÷ 4 = 2.5 gallons.
Real-Life Examples
- Milk: a half gallon is 2 quarts or 8 cups.
- Paint: 3 quarts is 0.75 gallon.
- Motor oil: 5 quarts is 1.25 gallons, or 4.73 L.
- Canning: a 2 gallon batch fills 8 quart jars or 16 pint jars.
Gallon vs Quart
- Gallon (gal): 4 quarts, 3.785 L.
- Quart (qt): a quarter gallon, 2 pints, 0.9464 L.
- Liter vs quart: a liter is a little bigger, 1.057 quarts.
Gallons to Quarts Chart
US liquid measures.
| Gallons | Quarts | Pints | Cups | Liters |
|---|---|---|---|---|
| 0.25 gal | 1 qt | 2 pt | 4 cups | 0.95 L |
| 0.5 gal | 2 qt | 4 pt | 8 cups | 1.89 L |
| 0.75 gal | 3 qt | 6 pt | 12 cups | 2.84 L |
| 1 gal | 4 qt | 8 pt | 16 cups | 3.79 L |
| 1.5 gal | 6 qt | 12 pt | 24 cups | 5.68 L |
| 2 gal | 8 qt | 16 pt | 32 cups | 7.57 L |
| 2.5 gal | 10 qt | 20 pt | 40 cups | 9.46 L |
| 3 gal | 12 qt | 24 pt | 48 cups | 11.36 L |
| 4 gal | 16 qt | 32 pt | 64 cups | 15.14 L |
| 5 gal | 20 qt | 40 pt | 80 cups | 18.93 L |
| 10 gal | 40 qt | 80 pt | 160 cups | 37.85 L |
The Gallon Family
US liquid measures all come from the gallon of 231 cubic inches. Halving it gives the half gallon; quartering it gives the quart (a quarter gallon), halving the quart gives the pint, and halving the pint gives the cup. Many people remember this with the drawing of a big G holding four Qs, each holding two Ps, each holding two Cs. Because each unit is a simple fraction of the gallon, these conversions are exact.
The UK imperial gallon is bigger (4.546 L) and so are its quarts and pints: an imperial quart is 1137 mL against 946 mL for a US quart. US dry measures for grain and berries also differ slightly: a US dry quart is about 1.101 L. For milk, paint, fuel and cooking in the US, the liquid measures used here are the right ones.
Common Mistakes to Avoid
- Using imperial sizes for US recipes. UK quarts are 20% bigger.
- Multiplying by 2 for quarts. A gallon has 4 quarts; 2 is for half gallons.
- Using dry quarts for liquids. Dry quarts are slightly larger.
- Confusing quarts and liters. A liter is 1.057 quarts.
- Forgetting pints. A quart is 2 pints, not 4.
Frequently Asked Questions
There are 4 quarts in a US gallon.
Multiply gallons by 4.
2 gallons is 8 quarts.
Half a gallon is 2 quarts.
6 quarts is 1.5 gallons.
There are 16 cups in a gallon.
There are 8 pints in a gallon.
5 gallons is 20 quarts.
No. A liter is slightly bigger: 1 L = 1.057 US quarts.
References & Sources
| Source | Used For | Link |
|---|---|---|
| NIST Handbook 44, Appendix C: General Tables of Units of Measurement | US liquid gallon of 231 cubic inches and its quarts, pints and fluid ounces. | https://www.nist.gov/pml/owm/nist-handbook-44-current-edition |
| NIST, Guide to the SI, Appendix B.8 | US gallon = 3.785412 L; US liquid quart = 0.9463529 L. | https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8 |