Volume • NIST Exact

US Quarts US Gallons

qt (US) → gal (US)

1 qt (US) = 0.25 gal (US)NIST Exact

NIST Exact

Based on U.S. National Institute of Standards

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qt (US) → gal (US) Reference Table

qt (US) gal (US)
0.001 qt (US) 0.00025 gal (US)
0.002 qt (US) 0.0005 gal (US)
0.003 qt (US) 0.00075 gal (US)
0.004 qt (US) 0.001 gal (US)
0.005 qt (US) 0.00125 gal (US)
0.006 qt (US) 0.0015 gal (US)
0.007 qt (US) 0.00175 gal (US)
0.008 qt (US) 0.002 gal (US)
0.009 qt (US) 0.00225 gal (US)
0.01 qt (US) 0.0025 gal (US)
0.02 qt (US) 0.005 gal (US)
0.03 qt (US) 0.0075 gal (US)
0.04 qt (US) 0.01 gal (US)
0.05 qt (US) 0.0125 gal (US)
0.06 qt (US) 0.015 gal (US)
0.07 qt (US) 0.0175 gal (US)
0.08 qt (US) 0.02 gal (US)
0.09 qt (US) 0.0225 gal (US)
0.1 qt (US) 0.025 gal (US)
0.2 qt (US) 0.05 gal (US)
0.3 qt (US) 0.075 gal (US)
0.4 qt (US) 0.1 gal (US)
0.5 qt (US) 0.125 gal (US)
0.6 qt (US) 0.15 gal (US)
0.7 qt (US) 0.175 gal (US)
0.8 qt (US) 0.2 gal (US)
0.9 qt (US) 0.225 gal (US)
1 qt (US) 0.25 gal (US)
1.5 qt (US) 0.375 gal (US)
2 qt (US) 0.5 gal (US)
2.5 qt (US) 0.625 gal (US)
3 qt (US) 0.75 gal (US)
3.5 qt (US) 0.875 gal (US)
4 qt (US) 1 gal (US)
4.5 qt (US) 1.125 gal (US)
5 qt (US) 1.25 gal (US)
5.5 qt (US) 1.375 gal (US)
6 qt (US) 1.5 gal (US)
6.5 qt (US) 1.625 gal (US)
7 qt (US) 1.75 gal (US)
7.5 qt (US) 1.875 gal (US)
8 qt (US) 2 gal (US)
8.5 qt (US) 2.125 gal (US)
9 qt (US) 2.25 gal (US)
9.5 qt (US) 2.375 gal (US)
10 qt (US) 2.5 gal (US)
11 qt (US) 2.75 gal (US)
12 qt (US) 3 gal (US)
13 qt (US) 3.25 gal (US)
14 qt (US) 3.5 gal (US)
15 qt (US) 3.75 gal (US)
16 qt (US) 4 gal (US)
17 qt (US) 4.25 gal (US)
18 qt (US) 4.5 gal (US)
19 qt (US) 4.75 gal (US)
20 qt (US) 5 gal (US)
25 qt (US) 6.25 gal (US)
30 qt (US) 7.5 gal (US)
35 qt (US) 8.75 gal (US)
40 qt (US) 10 gal (US)
45 qt (US) 11.25 gal (US)
50 qt (US) 12.5 gal (US)
55 qt (US) 13.75 gal (US)
60 qt (US) 15 gal (US)
65 qt (US) 16.25 gal (US)
70 qt (US) 17.5 gal (US)
75 qt (US) 18.75 gal (US)
80 qt (US) 20 gal (US)
85 qt (US) 21.25 gal (US)
90 qt (US) 22.5 gal (US)
95 qt (US) 23.75 gal (US)
100 qt (US) 25 gal (US)
120 qt (US) 30 gal (US)
125 qt (US) 31.25 gal (US)
130 qt (US) 32.5 gal (US)
140 qt (US) 35 gal (US)
150 qt (US) 37.5 gal (US)
160 qt (US) 40 gal (US)
175 qt (US) 43.75 gal (US)
180 qt (US) 45 gal (US)
200 qt (US) 50 gal (US)
225 qt (US) 56.25 gal (US)
250 qt (US) 62.5 gal (US)
275 qt (US) 68.75 gal (US)
300 qt (US) 75 gal (US)
350 qt (US) 87.5 gal (US)
400 qt (US) 100 gal (US)
450 qt (US) 112.5 gal (US)
500 qt (US) 125 gal (US)
600 qt (US) 150 gal (US)
700 qt (US) 175 gal (US)
750 qt (US) 187.5 gal (US)
800 qt (US) 200 gal (US)
900 qt (US) 225 gal (US)
1000 qt (US) 250 gal (US)
1200 qt (US) 300 gal (US)
1250 qt (US) 312.5 gal (US)
1500 qt (US) 375 gal (US)
1750 qt (US) 437.5 gal (US)
2000 qt (US) 500 gal (US)
2500 qt (US) 625 gal (US)
3000 qt (US) 750 gal (US)
4000 qt (US) 1000 gal (US)
4500 qt (US) 1125 gal (US)
5000 qt (US) 1250 gal (US)
6000 qt (US) 1500 gal (US)
7000 qt (US) 1750 gal (US)
7500 qt (US) 1875 gal (US)
8000 qt (US) 2000 gal (US)
9000 qt (US) 2250 gal (US)
10000 qt (US) 2500 gal (US)
15000 qt (US) 3750 gal (US)
20000 qt (US) 5000 gal (US)
25000 qt (US) 6250 gal (US)
50000 qt (US) 12500 gal (US)
75000 qt (US) 18750 gal (US)
100000 qt (US) 25000 gal (US)

Values based on NIST SP 811 conversion factors

Why Convert US Quarts to US Gallons?

Converting between us quarts (qt (US)) and us gallons (gal (US)) is one of the most common volume conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert qt (US) to gal (US) saves time and prevents errors.

Volume conversions (qt (US) to gal (US)) play a key role in the automotive industry, cooking, and chemical manufacturing. Drivers comparing engine displacement or fuel tank capacity need clear conversions to understand vehicle performance and range. In the kitchen, converting liquid ingredients like milk, oil, or broth is essential when adapting recipes from different regions. For industrial applications, mixing chemical solutions requires exact volume measurements to maintain product stability and safety. An error in volume conversion can lead to mechanical failures, ruined culinary creations, or hazardous chemical reactions, making precision indispensable.

How to Convert US Quarts to US Gallons

To convert us quarts to us gallons, use the following formula:

gal (US) = qt (US) × 0.25

Example: 1 qt (US) = 0.25 gal (US)

For example, 5 qt (US) = 1.25 gal (US), 10 qt (US) = 2.5 gal (US), and 100 qt (US) = 25 gal (US). For larger values, 1000 qt (US) = 250 gal (US). Conversely, 1 gal (US) = 4 qt (US). Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Mistakes to Avoid

  • Fluid vs Dry: confusing fluid pints/quarts with dry pints/quarts.
  • US vs Imperial: US gallons are smaller than UK Imperial gallons.
  • Cubic conversion: forgetting to cube linear factors (1 m = 100 cm, 1 m³ = 1,000,000 cm³).

Pro Tips

  • Cooking spoon: 1 Tablespoon = 3 Teaspoons = 15 ml.
  • Cup size: A standard US cup is 240ml, but metric cup is often 250ml.
  • Cube visual: 1 cubic meter is a box 1m x 1m x 1m (huge!).

What is a US Quart?

A US Customary unit of liquid volume equal to 1/4 of a gallon.

Common for milk, oil, and paint packaging in the US.

What is a US Gallon?

The US liquid gallon is a unit of volume in the US customary system. It is legally defined as 231 cubic inches, which is exactly 3.785411784 liters.

Gallons are the standard unit for gasoline (fuel), milk, and large liquid containers in the United States and some Latin American countries.

Frequently Asked Questions

How many us gallons are in 1 us quart?

1 qt (US) equals 0.25 gal (US). This is an exact conversion factor defined by NIST.

How do I convert us quarts to us gallons?

Multiply the value in qt (US) by the conversion factor. For example, 10 qt (US) = 2.5 gal (US). Use our calculator above for instant results.

Is the us quarts to us gallons conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

Can I convert us quarts to us gallons offline?

Yes! OmniConvert runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between us quarts and us gallons?

US Quarts (qt (US)) and US Gallons (gal (US)) are both units of volume but belong to different measurement systems. 1 qt (US) = 0.25 gal (US). Use the converter above to switch between them instantly.

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