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US gallons to US quarts Converter

1 gal = 4 qt (US gallon → US quart)

1 gal = 4 qt

1 US gallon equals 4 US quarts. To convert US gallons to US quarts, multiply the US gallon value by 4. For quick reference: 1 gal = 4 qt, 5 gal = 20 qt, 10 gal = 40 qt, 100 gal = 400 qt.

4
FormulaUS quarts = US gallons × 4
Quick

How to convert US gallons to US quarts

  1. Take your value

    Start with your value in US gallons.

  2. Multiply by 4

    Multiply the US gallon value by 4. This is the exact conversion factor from US gallons to US quarts.

  3. Read the result

    The product is your value in US quarts. For example, 5 gal × 4 = 20 qt.

Conversion formula

The exact factor from US gallons to US quarts is 4.

US quarts = US gallons × 4

US gallons to US quarts conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from US gallons to US quarts
US gallons (gal)US quarts (qt)
0.1 gal0.4 qt
0.25 gal1 qt
0.5 gal2 qt
1 gal4 qt
1.5 gal6 qt
2 gal8 qt
2.5 gal10 qt
3 gal12 qt
4 gal16 qt
5 gal20 qt
6 gal24 qt
7 gal28 qt
8 gal32 qt
9 gal36 qt
10 gal40 qt
12 gal48 qt
15 gal60 qt
20 gal80 qt
25 gal100 qt
30 gal120 qt
40 gal160 qt
50 gal200 qt
60 gal240 qt
75 gal300 qt
100 gal400 qt
125 gal500 qt
150 gal600 qt
200 gal800 qt
250 gal1000 qt
300 gal1200 qt
400 gal1600 qt
500 gal2000 qt
600 gal2400 qt
750 gal3000 qt
1000 gal4000 qt
1500 gal6000 qt
2000 gal8000 qt
2500 gal10000 qt
3000 gal12000 qt
4000 gal16000 qt
5000 gal20000 qt
7500 gal30000 qt
10000 gal40000 qt
15000 gal60000 qt
20000 gal80000 qt
25000 gal100000 qt
30000 gal120000 qt
40000 gal160000 qt
50000 gal200000 qt
100000 gal400000 qt

Real-world reference

A standard US milk jug holds 1 gal. An average car's fuel tank is 12–16 gal. In US quarts, that gives you: 1 gal = 4 qt, 10 gal = 40 qt, 100 gal = 400 qt.

Frequently asked questions

How many US quarts are in 1 US gallon?
1 US gallon equals 4 US quarts.
How do I convert US gallons to US quarts?
Multiply the US gallon value by 4. So x gal × 4 = the equivalent in qt.
What is 5 US gallons in US quarts?
5 US gallons equals 20 US quarts.
What is 10 US gallons in US quarts?
10 US gallons equals 40 US quarts.
What is 100 US gallons in US quarts?
100 US gallons equals 400 US quarts.
How do I convert back from US quarts to US gallons?
Multiply the US quart value by 0.25. For example, 1 qt = 0.25 gal.
Is the US gallon bigger than the US quart?
Yes. 1 US gallon is larger than 1 US quart — specifically 4 times larger.
Are these conversion factors exact?
The factor is derived directly from the SI definitions of US gallon and US quart; the displayed value is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.

About the US gallon and the US quart

The US gallon

The US liquid gallon equals exactly 3.785411784 liters, defined as 231 cubic inches. It is the standard fuel and milk unit in the United States. The US gallon is about 16.7% smaller than the UK (imperial) gallon (4.54609 L), so quoting fuel economy as 'mpg' without specifying the gallon can mislead by a wide margin.

The US quart

The US liquid quart equals exactly 946.352946 mL, defined as 1/4 of a US gallon (2 US pints). It is a common US packaging size for milk, oil, and cooking stock.

Related converters

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US cups to US fluid ounces
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Sources