Convert Quart to US Gallon (qt → gal (US))

Converting quarts to US gallons is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

1. 1
   Take your value in quarts

   Start with the number of quarts (qt) you want to convert.
2. 2
   Multiply by 0.25

   The conversion factor from qt to gal (US) is 0.25. Multiply your value by this number.
3. 3
   Read the result in US gallons

   The result is your value in US gallons (gal (US)).

Multiply the value in quarts by 0.25. For the reverse direction, multiply by 4.

• ✓1 US quart = 2 US pints = 946 ml ≈ 1 L.
• ✓1 UK quart = 2 UK pints = 1137 ml.
• ✓Quarts appear more often in the US than UK in everyday usage.

• ✗Treating US and UK quarts as equal — 20% off.
• ✗Using quarts outside US — most metric countries do not use them at all.
• ✗Confusing quart (volume) with quarter (mass unit in older UK contexts).

What is the Quart?

The US quart equals exactly one quarter of a US gallon (0.946352946 liters) and is a common kitchen and motor-oil volume in the United States. The word 'quart' derives from the Latin 'quartus' meaning fourth. Milk and motor oil are commonly sold in quart containers (a quart of motor oil is 32 fl oz), and large recipes call for quart-sized stockpots. The US quart is distinct from the slightly larger UK imperial quart (1.137 L). It relates to the gallon (4 qt = 1 gal), the pint (2 pt = 1 qt), the cup (4 cups = 1 qt), the fluid ounce (32 fl oz = 1 qt), and the liter (1 US qt ≈ 0.946 L). The quart is a useful intermediate volume between the cup (small recipe measurements) and the gallon (bulk liquids).

• US cooking recipe quantities
• US motor-oil container sizes (1 quart bottles)
• Canning and preserving containers

What is the US Gallon?

The US liquid gallon equals exactly 3.785411784 liters and is the standard volume unit for fuel, beverages, milk, and household liquids in the United States. Defined as 231 cubic inches, the US gallon descends from the English wine gallon of 1707, which Britain replaced with the larger imperial gallon in 1824 — a divergence that left the United States with a different gallon than the rest of the English-speaking world. American gas stations price gasoline by the gallon (typical fill-up: 12–15 gallons), milk is sold in half-gallons and gallons, and many beverages come in fluid-ounce subdivisions of the gallon. The US gallon relates to the liter (1 gal ≈ 3.785 L), the quart (4 qt = 1 gal), the pint (8 pt = 1 gal), the cup (16 cups = 1 gal), and the imperial gallon (1 imp gal ≈ 1.201 US gal — about 20% larger).

• US fuel pricing and consumption
• US paint, oil and cleaning-product packaging
• US beverage containers (1-gallon jugs of milk)