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Calculator Answers

How Many Quarts in a Gallon

Blake Boege
Written by Blake Boege · Founder, Calculator Answers

A quarts-in-a-gallon page converts volumes between quarts and gallons. The word quart is derived from 'quarter', meaning one quarter of a gallon. Therefore, a quart is exactly one-quarter of a gallon, which means 1 gallon equals 4 quarts in both the US Customary and British Imperial systems, though the absolute volume of a quart differs between them.

Learn the relationship between quarts and gallons. Convert gallons to quarts and vice versa, and explore the volume differences between US and Imperial liquid systems.

See also: How Many Cups in a Gallon, How Many Ounces in a Gallon, and How Many Liters in a Gallon.

Quick Answer

Determine how many quarts are in a gallon (4 quarts in a gallon) and convert between these volume units using our quick converter.

Direct Answer

How Many Quarts in a Gallon?

There are exactly 4 quarts in 1 gallon.

This ratio is constant in both the US Customary measurement system and the British Imperial measurement system.

Liquid Measurement System

Formula: 1 Gallon = 4 Quarts (in both US and UK Imperial systems)

Gallons to Quarts Table

Gallons (gal)Quarts (qt)
1/4 gal1 qt
1/2 gal2 qt
3/4 gal3 qt
1 gal4 qt
2 gal8 qt
3 gal12 qt
5 gal20 qt
10 gal40 qt
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Examples

1 Gallon

4 Quarts

5 Gallons

20 Quarts

10 Gallons

40 Quarts

How it works

The word quart comes from the Latin word quartus (meaning one quarter). Therefore, a quart is exactly one-quarter of a gallon:

The Formula

1 Gallon = 4 Quarts

To find quarts, multiply gallons by 4. To find gallons, divide quarts by 4.

Liquid Quarts vs. Dry Quarts vs. Imperial Quarts

While the ratio is always 4 quarts per gallon, the actual volume of a quart depends on the measurement system being used:

  • US Liquid Quart: Used for liquid measurements in the United States, equivalent to 32 US fluid ounces or approximately 946.35 milliliters.
  • US Dry Quart: Used for dry agricultural goods in the US, equivalent to approximately 1,101.22 milliliters.
  • Imperial Quart: Historically used in the UK and Commonwealth, equivalent to 40 Imperial fluid ounces or approximately 1,136.52 milliliters.

Visualizing the Liquid Measurements Hierarchy

In the standard US Customary liquid system, the division flows from largest to smallest:

1 Gallon = 4 Quarts = 8 Pints = 16 Cups = 128 Fluid Ounces

Related Conversions

Explore more volume and kitchen measurement calculators:

How Many Ounces in a GallonHow Many Cups in a GallonVolume Calculator

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More tools from Conversions

How Many Cups in a GallonConvert gallons to cups and cups to gallons instantly. Learn about differences in cup sizes between US customary, legal, and Imperial measurement standards.How Many Ounces in a GallonFind out exactly how many fluid ounces are in a gallon. Use our quick converter to switch between gallons and ounces using either US customary or Imperial measurements.How Many Liters in a GallonConvert between gallons and liters instantly. Learn the key differences between the US liquid gallon and the Imperial volume standard.How Much Does a Gallon of Water WeighA US gallon of water weighs approximately 8.34 pounds (3.78 kg) at room temperature. An Imperial gallon weighs about 10.02 pounds. Compare weight and volume.

Frequently asked questions

There are exactly 20 quarts in 5 gallons (5 gallons × 4 quarts per gallon).

No. Because the Imperial gallon is larger than the US gallon, the quarts also differ in size. A US liquid quart is approximately 946.35 mL, whereas an Imperial quart (used in the UK and Canada historically) is larger, at approximately 1,136.52 mL.

There are 2 pints in a quart (in both the US and Imperial systems).

There are 4 cups in a standard US quart, and 4 Imperial cups in an Imperial quart.