ConverterHub

US quarts to Litres Converter

Enter a value in us quarts to convert it to litres, millilitres.

How it is calculated

The tool multiplies by a fixed factor: litres = quarts × 0.946352946 and millilitres = quarts × 946.352946. This is the US liquid quart, a quarter of a US gallon. The litre result is shown with four decimals and the millilitre result with two. Any number is accepted, including decimals such as 0.5 for half a quart. It is not the UK imperial quart, which is larger at about 1.136 litres, nor the US dry quart used for produce. To go from litres back to quarts, divide by 0.946352946.

Worked example

A recipe from a US cookbook needs 6 quarts of stock. Multiply by the factor: 6 × 0.946352946 ≈ 5.6781, so you need 5.6781 L. In millilitres: 6 × 946.352946 ≈ 5,678.12 mL. In practice you would measure about 5.7 litres, a bit less than six litres, because a US quart is slightly smaller than a litre.

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Common mistakes

  • Treating one quart as one litre. A US quart is about 5% smaller, so 6 quarts is nearly 5.7 litres, not 6.
  • Using this factor for an imperial quart in a British recipe. The imperial quart is about 1.136 litres, so the real volume is noticeably larger.
  • Confusing liquid and dry quarts. This tool converts the US liquid quart; dry quarts for produce hold a different volume.
  • Mixing quarts with pints or gallons. A quart is 2 US pints, and 4 quarts make a gallon, so check which unit the recipe uses.
  • Rounding the factor to 0.95 on large volumes. On 100 quarts that gives 95 litres instead of 94.64.

About this calculator

The US liquid quart equals exactly 0.946353 litres (a quarter of a US gallon, or 2 US pints), distinct from both the UK imperial quart (1.136 litres) and the US dry quart used for produce — a source of frequent confusion when reading recipes or product labels across regions.

Home cooks converting American recipes to metric, and anyone buying milk, oil or other liquids sold by the quart, use this conversion to translate between US customary volumes and the litres/millilitres used almost everywhere else in the world for cooking and packaging.

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