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US Gallons to US Quarts (gal to qt) Converter

1 US gallon (gal) = 4 US quarts (qt). To convert US gallons to US quarts, multiply by 4: 15 gal × 4 = 60 qt.

1 gal = 4 qt
Convert the other way: US Quarts to US Gallons

Quick facts

How to convert US gallons to US quarts

  1. Take the value in US gallons.
  2. Multiply it by 4 (the number of US quarts in one US gallon).
  3. Round the result to the precision you need.
qt = gal × 4

Worked example (a car fuel tank): 15 gal × 4 = 60 qt.

To convert US quarts back to US gallons, multiply by 0.25, or divide by 4.

Source: NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units).

US Gallons to US Quarts conversion table

US Gallons to US Quarts conversion table
US Gallons [gal]US Quarts [qt]
0.01 gal0.04 qt
0.1 gal0.4 qt
1 gal4 qt
2 gal8 qt
3 gal12 qt
5 gal20 qt
10 gal40 qt
20 gal80 qt
50 gal200 qt
100 gal400 qt
1000 gal4000 qt

gal to qt chart from 1 to 100

US Quarts to US Gallons conversion table

US Quarts to US Gallons conversion table
US Quarts [qt]US Gallons [gal]
0.01 qt0.0025 gal
0.1 qt0.025 gal
1 qt0.25 gal
2 qt0.5 gal
3 qt0.75 gal
5 qt1.25 gal
10 qt2.5 gal
20 qt5 gal
50 qt12.5 gal
100 qt25 gal
1000 qt250 gal

US Gallons vs US Quarts

US GallonUS Quart
Symbolgalqt
Equals1 gal = 4 qt1 qt = 0.25 gal

What is a US gallon?

A US customary unit equal to 4 quarts. Used in the US for fuel, milk, and paint.

What is a US quart?

A US customary unit equal to 2 pints or 1/4 gallon. Used in the US for milk, motor oil, and cooking.

Frequently asked questions

How many US quarts are in a US gallon?

There are 4 US quarts in 1 US gallon (1 gal = 4 qt).

How many US gallons are in a US quart?

There are 0.25 US gallons in 1 US quart (1 qt = 0.25 gal).

How do I convert US gallons to US quarts?

Multiply the number of US gallons by 4. For example, 10 gal × 4 = 40 qt. To convert back, multiply by 0.25.

What is 10 gal in US quarts?

10 gal = 40 qt.

What is 100 gal in US quarts?

100 gal = 400 qt.

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units)). Results are shown to up to 10 decimal places; round them to suit your purpose.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.