US liquid quarts to US gallons
US liquid quarts to US gallons (qt (US) to gal (US)) Converter
Convert from
- LitresL
- US gallonsgal (US)
- MillilitresmL
- DecilitresdL
- Cubic metresm³
- Imperial gallons (UK)gal (UK)
- US liquid quartsqt (US)
- Imperial quarts (UK)qt (UK)
- US liquid pintspt (US)
- Imperial pints (UK)pt (UK)
- US fluid ouncesfl oz (US)
- Imperial fluid ounces (UK)fl oz (UK)
- Cubic inchesin³
- Cubic feetft³
- Cubic yardsyd³
- Oil barrels (US)bbl
- US cupscup (US)
- Metric cupscup (metric)
- Imperial cups (UK)cup (UK)
- US tablespoonstbsp (US)
- US teaspoonstsp (US)
- Metric tablespoonstbsp (metric)
- Metric teaspoonstsp (metric)
1 US liquid quart = 0.25 US gallons
Default is 5 significant figures. “Units typed as” decides what words like gallon, pint or cup mean when you type them. Scientific input such as 1e15 or 2.5e-3 works in the value box; type unit names or a whole conversion in the unit picker’s search.
- 1 qt (US) = 0.25 gal (US)
- 5 qt (US) = 1.25 gal (US)
- 10 qt (US) = 2.5 gal (US)
- 25 qt (US) = 6.25 gal (US)
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How it’s calculated
Four quarts make a gallon in both systems, but the US gallon (3.785 L) and the imperial gallon (4.546 L) differ, so keep both units from the same system.
1 qt (US) = 0.25 gal (US) (exact) · 1 gal (US) = 4 qt (US) (exact)
gal (US) = qt (US) × 0.25
- Multiply the value in US liquid quarts by 0.25.
- To go back, divide by 0.25 (or multiply by 4).
- 1 qt (US) = 0.25 gal (US) · 1 gal (US) = 4 qt (US)
Step by step
Find the conversion factor
By definition 1 qt (US) = 0.000946352946 m³ and 1 gal (US) = 0.003785411784 m³, so 1 gal (US) = 4 qt (US). Source: NIST SP 811 / Handbook 44.
Multiply by the factor written as a fraction
Put qt (US) in the denominator so it cancels, leaving gal (US).
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 0.25 gal (US)
Formula: gal (US) = qt (US) × 0.25. Factors last reviewed 2026-10-27.
US liquid quarts to US gallons conversion table
1 US liquid quart = 0.25 US gallons · 1 gal (US) = 4 qt (US)
- 1 US liquid quart = 0.25 US gallons
- 5 US liquid quarts = 1.25 US gallons
- 10 US liquid quarts = 2.5 US gallons
- 25 US liquid quarts = 6.25 US gallons
- 100 US liquid quarts = 25 US gallons
| US liquid quarts (qt (US)) | US gallons (gal (US)) |
|---|---|
| 0.1 qt (US) | 0.025 gal (US) |
| 0.5 qt (US) | 0.125 gal (US) |
| 1 qt (US) | 0.25 gal (US) |
| 2 qt (US) | 0.5 gal (US) |
| 3 qt (US) | 0.75 gal (US) |
| 4 qt (US) | 1 gal (US) |
| 5 qt (US) | 1.25 gal (US) |
| 6 qt (US) | 1.5 gal (US) |
| 7 qt (US) | 1.75 gal (US) |
| 8 qt (US) | 2 gal (US) |
| 9 qt (US) | 2.25 gal (US) |
| 10 qt (US) | 2.5 gal (US) |
| 15 qt (US) | 3.75 gal (US) |
| 20 qt (US) | 5 gal (US) |
| 25 qt (US) | 6.25 gal (US) |
| 30 qt (US) | 7.5 gal (US) |
| 40 qt (US) | 10 gal (US) |
| 50 qt (US) | 12.5 gal (US) |
| 75 qt (US) | 18.75 gal (US) |
| 100 qt (US) | 25 gal (US) |
| 250 qt (US) | 62.5 gal (US) |
| 500 qt (US) | 125 gal (US) |
| 1,000 qt (US) | 250 gal (US) |
FAQ
How do I convert US liquid quarts to US gallons?
Use gal (US) = qt (US) × 0.25. Multiply the value in US liquid quarts by 0.25.
How many US gallons are in 1 US liquid quart?
1 US liquid quart (qt (US)) equals 0.25 US gallons (gal (US)).
How many US liquid quarts are in 1 US gallon?
1 US gallon (gal (US)) equals 4 US liquid quarts (qt (US)).
What is 10 qt (US) in gal (US)?
10 US liquid quarts = 2.5 US gallons.
Is the US liquid quart a US or a UK unit?
Unitglide uses the US customary US liquid quart. US and UK units with the same name can differ, so check which one your source uses.
Is the US gallon a US or a UK unit?
Unitglide uses the US customary US gallon. The US gallon: exactly 231 cubic inches, or 3.785411784 L. US and UK units with the same name can differ, so check which one your source uses.
What is a US gallon?
The US gallon: exactly 231 cubic inches, or 3.785411784 L.
About these units
US liquid quart (qt (US))
US customary
1 qt (US) = 0.000946352946 m³ (exact)
Source: NIST SP 811 / Handbook 44
US gallon (gal (US))
US customary
1 gal (US) = 0.003785411784 m³ (exact)
The US gallon: exactly 231 cubic inches, or 3.785411784 L.
Source: NIST SP 811 / Handbook 44