US gallons to US liquid quarts
US gallons to US liquid quarts (gal (US) to qt (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 gallon = 4 US liquid quarts
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 gal (US) = 4 qt (US)
- 5 gal (US) = 20 qt (US)
- 10 gal (US) = 40 qt (US)
- 25 gal (US) = 100 qt (US)
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How it’s calculated
A US gallon is exactly 4 US liquid quarts. The imperial gallon is also 4 imperial quarts, but each is about 20% larger.
1 gal (US) = 4 qt (US) (exact) · 1 qt (US) = 0.25 gal (US) (exact)
qt (US) = gal (US) × 4
- Multiply the value in US gallons by 4.
- To go back, divide by 4 (or multiply by 0.25).
- 1 gal (US) = 4 qt (US) · 1 qt (US) = 0.25 gal (US)
Step by step
Find the conversion factor
By definition 1 gal (US) = 0.003785411784 m³ and 1 qt (US) = 0.000946352946 m³, so 1 gal (US) = 4 qt (US). Source: NIST SP 811 / Handbook 44.
Multiply by the factor written as a fraction
Put gal (US) in the denominator so it cancels, leaving qt (US).
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 4 qt (US)
Formula: qt (US) = gal (US) × 4. Factors last reviewed 2026-10-27.
US gallons to US liquid quarts conversion table
1 US gallon = 4 US liquid quarts · 1 qt (US) = 0.25 gal (US)
- 1 US gallon = 4 US liquid quarts
- 5 US gallons = 20 US liquid quarts
- 10 US gallons = 40 US liquid quarts
- 25 US gallons = 100 US liquid quarts
- 100 US gallons = 400 US liquid quarts
| US gallons (gal (US)) | US liquid quarts (qt (US)) |
|---|---|
| 0.1 gal (US) | 0.4 qt (US) |
| 0.5 gal (US) | 2 qt (US) |
| 1 gal (US) | 4 qt (US) |
| 2 gal (US) | 8 qt (US) |
| 3 gal (US) | 12 qt (US) |
| 4 gal (US) | 16 qt (US) |
| 5 gal (US) | 20 qt (US) |
| 6 gal (US) | 24 qt (US) |
| 7 gal (US) | 28 qt (US) |
| 8 gal (US) | 32 qt (US) |
| 9 gal (US) | 36 qt (US) |
| 10 gal (US) | 40 qt (US) |
| 15 gal (US) | 60 qt (US) |
| 20 gal (US) | 80 qt (US) |
| 25 gal (US) | 100 qt (US) |
| 30 gal (US) | 120 qt (US) |
| 40 gal (US) | 160 qt (US) |
| 50 gal (US) | 200 qt (US) |
| 75 gal (US) | 300 qt (US) |
| 100 gal (US) | 400 qt (US) |
| 250 gal (US) | 1,000 qt (US) |
| 500 gal (US) | 2,000 qt (US) |
| 1,000 gal (US) | 4,000 qt (US) |
FAQ
How do I convert US gallons to US liquid quarts?
Use qt (US) = gal (US) × 4. Multiply the value in US gallons by 4.
How many US liquid quarts are in 1 US gallon?
1 US gallon (gal (US)) equals 4 US liquid quarts (qt (US)).
How many US gallons are in 1 US liquid quart?
1 US liquid quart (qt (US)) equals 0.25 US gallons (gal (US)).
What is 10 gal (US) in qt (US)?
10 US gallons = 40 US liquid quarts.
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.
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.
What is a US gallon?
The US gallon: exactly 231 cubic inches, or 3.785411784 L.
About these units
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
US liquid quart (qt (US))
US customary
1 qt (US) = 0.000946352946 m³ (exact)
Source: NIST SP 811 / Handbook 44