Convert US quarts to US gallons
1 US quart is 0.25 gal. One US quart is exactly 0.25 US gallons.
One US quart is 0.25 US gallons. To convert US quarts to US gallons, multiply by 0.25; to go the other way, divide by 0.25 or multiply by 4. The factor is exact rather than rounded: it follows from NIST Handbook 130. Two pints, about 946 ml, and close enough to a liter that recipes swap them.
Factor checked against the defining standard · How we check
- US quarts × 0.25
1 * 0.250.25 gal
1 US quart in every volume unit
| Unit | Value | Exact factor |
|---|---|---|
| US teaspoons | 192 tsp | × 192 |
| US tablespoons | 64 tbsp | × 64 |
| US fluid ounces | 32 fl oz | × 32 |
| US cups | 4 cup | × 4 |
| US pints | 2 pt | × 2 |
| US quarts (as entered) | 1 qt | — |
| US gallons | 0.25 gal | × 0.25 |
| milliliters | 946.352946 ml | × 946.352946 |
| liters | 0.946352946 L | × 0.946352946 |
| imperial gallons | 0.2081685462 gal (UK) | × 0.208168546157 |
| imperial quarts | 0.8326741846 qt (UK) | × 0.832674184629 |
| imperial pints | 1.665348369 pt (UK) | × 1.66534836926 |
| imperial fluid ounces | 33.30696739 fl oz (UK) | × 33.3069673852 |
| imperial gills | 6.661393477 gi (UK) | × 6.66139347703 |
| cubic millimetres | 946,352.946 mm³ | × 946,352.946 |
| cubic centimetres | 946.352946 cm³ | × 946.352946 |
| cubic inches | 57.75 in³ | × 57.75 |
| cubic feet | 0.03342013889 ft³ | × 0.0334201388889 |
| cubic yards | 0.001237782922 yd³ | × 0.00123778292181 |
| cubic metres | 0.000946352946 m³ | × 0.000946352946 |
Factors are entered by hand from NIST Handbook 130 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert US quarts to US gallons? The converter and the working
- 1.Take the measurement in US quarts.
- 2.Multiply by 0.25 — that is how many US gallons fit in one US quart.
- 3.To go back the other way, divide by 0.25, or multiply by 4.
Worked example: 25 US quarts to US gallons
- Formula
- qt × 0.25 = gal
- Arithmetic
- 25 × 0.25 = 6.25 gal
- Answer
- 25 qt = 6.25 gal
The factor is exact, so this figure is exact too — only the display is rounded.
US quarts to US gallons conversion table
| US quarts | US gallons |
|---|---|
| 1 qt | 0.25 gal |
| 2 qt | 0.5 gal |
| 3 qt | 0.75 gal |
| 4 qt | 1 gal |
| 5 qt | 1.25 gal |
| 6 qt | 1.5 gal |
| 7 qt | 1.75 gal |
| 8 qt | 2 gal |
| 9 qt | 2.25 gal |
| 10 qt | 2.5 gal |
| 12 qt | 3 gal |
| 15 qt | 3.75 gal |
| 20 qt | 5 gal |
| 25 qt | 6.25 gal |
| 50 qt | 12.5 gal |
| 100 qt | 25 gal |
| 200 qt | 50 gal |
| 300 qt | 75 gal |
| 500 qt | 125 gal |
| 1000 qt | 250 gal |
| 2000 qt | 500 gal |
| 5000 qt | 1,250 gal |
| 10000 qt | 2,500 gal |
What is a US quart?
Two pints, about 946 ml, and close enough to a liter that recipes swap them.
What is a US gallon?
Exactly 231 cubic inches. The imperial gallon is 4.546 liters, so US and UK fuel economy figures are not comparable.
How many US gallons are in a US quart?
One US quart is 0.25 US gallons, exactly. Going the other way, one US gallon is 4 US quarts. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every volume unit here
The whole group — 20 units with their symbols and the size of each one in liters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a US quart.
Cite this page
- APA
- Rule Calculator. (2026). Convert US quarts to US gallons. Rule Calculator. https://rulecalculators.com/convert/quart-to-gallon
- MLA
- "Convert US quarts to US gallons." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/quart-to-gallon.
- Chicago
- Rule Calculator. "Convert US quarts to US gallons." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/quart-to-gallon.
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Questions people actually ask
- How many US gallons are in a US quart?
- 0.25. Exactly 231 cubic inches. The imperial gallon is 4.546 liters, so US and UK fuel economy figures are not comparable.
- How do I convert US gallons back to US quarts?
- Divide by 0.25, or multiply by 4 — they are the same operation.
Other volume conversions
US gallons to US quarts — the same conversion the other way.