Convert Quart to Liter (qt → L)

Converting quarts to liters 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 0.946353

   The conversion factor from qt to L is 0.946353. Multiply your value by this number.
3. 3
   Read the result in liters

   The result is your value in liters (L).

Multiply the value in quarts by 0.946353. For the reverse direction, multiply by 1.056688.

• ✓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 Liter?

The liter equals exactly 1 cubic decimeter (1 dm³ = 0.001 m³) and is the everyday metric unit for liquids worldwide. Adopted as part of the metric system in the 1790s, the liter is used universally for beverages, fuel, household chemicals, and cooking liquids — except in the United States where gallons and fluid ounces dominate. The liter has special connection to mass: pure water at 4°C has almost exactly 1 kg per liter, a relationship designed into the metric system. Soda, milk, and water bottles in metric countries come in 0.5 L, 1 L, 1.5 L, and 2 L sizes. The liter relates to the milliliter (1,000 mL = 1 L), the cubic meter (1,000 L = 1 m³), the US gallon (1 L ≈ 0.264 gal), and the UK gallon (1 L ≈ 0.220 imp gal). Although not strictly an SI base unit, the liter is one of the most-used metric units globally.

• Bottled beverages and milk in Europe
• Petrol and diesel pricing in metric countries
• Engine displacement (car engines rated in litres)