Convert quarts to millilitres

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A US liquid quart is 946.35 millilitres, an imperial quart 1,136.52 and a US dry quart 1,101.22. Type a number of quarts and the result appears at once. The Quart type switch under both fields picks one of those three measures. A recipe line of 1.5 US qt comes to 1,419.53 millilitres.

US qt
ml
Quart type

US liquid: 0.946 l, the measure on American motor oil, milk and recipes. UK: 1.137 l, in British recipes and in Canadian weights-and-measures law. US dry: 1.101 l, for berries sold by volume.

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How many millilitres are in a quart?

One US liquid quart is 946.35 millilitres[1]. Multiply the number of quarts by 946.352946: millilitres = quarts × 946.352946.

The answer moves with the measure in front of you. An imperial quart holds 1,136.52 millilitres, 190.17 millilitres more than the US one. A US dry quart holds 1,101.22 millilitres[1] and belongs to the American ladder of dry measures[2]. The Quart type switch under the fields picks it, and the multiplier follows.

Rounding to a whole millilitre is enough for cooking, and the result field carries two decimal places.

The other direction is in the millilitres to quarts converter, and the answer in litres comes from the quarts to liters converter.

What is a millilitre, and what is a quart?

A millilitre is a thousandth of a litre and, at the same time, a cubic centimetre: a cube one centimetre on a side. That equality has held since 1964, when the General Conference on Weights and Measures ruled that the word litre may serve as a special name for the cubic decimetre[3]. A syringe marked cc and a jug marked ml therefore measure the same volume.

A liquid quart belongs to the US customary system and is a quarter of a gallon. The American table of measures gives the gallon as 231 cubic inches, the quart as 57.75 and the inch as exactly 2.54 centimetres[2]. Those three figures give exactly 946.352946 millilitres.

A quart splits further into two pints, four cups and 32 fluid ounces.

A translucent plastic measuring cup marked 50, 100, 150 and 200 millilitres, standing on a wooden worktop
The scale on this cup stops at 200 millilitres. A US liquid quart is 946.35 millilitres, so it takes 4.73 fillings of it. Photo: Mark Owen Wilkinson Hughes, Unsplash.

How do you convert quarts to millilitres? Formula and example

Take an American soup recipe calling for six quarts of stock. Six times 946.352946 gives 5,678.12 millilitres. That is 5.68 litres, so a six-litre pot holds it.

The same sum can be written as dimensional analysis. Multiply the number of quarts by a fraction of 946.352946 millilitres over one quart, the quarts cancel above and below the line, and millilitres are left. It reads: 6 qt × (946.352946 ml ÷ 1 qt) = 5,678.12 ml.

For the imperial and the dry quart the Quart type switch puts in the multiplier itself, and it recalculates the result when you change the measure after typing a value.

The oz to ml converter turns a fluid ounce, the thirty-second part of a quart, into millilitres.

How many millilitres is a given number of quarts?

The columns match the options on the Quart type switch. Values run to two decimal places of a millilitre, the same as the result field in the converter. Up to two quarts the rows go in steps of 0.25, with an extra row for 0.6, then in steps of 0.5 up to ten, and the table ends with 12, 16 and 20 quarts.
QuartsUS liquid quartImperial quartUS dry quart
0.25 qt236.59 ml284.13 ml275.31 ml
0.5 qt473.18 ml568.26 ml550.61 ml
0.6 qt567.81 ml681.91 ml660.73 ml
0.75 qt709.76 ml852.39 ml825.92 ml
1 qt946.35 ml1,136.52 ml1,101.22 ml
1.25 qt1,182.94 ml1,420.65 ml1,376.53 ml
1.5 qt1,419.53 ml1,704.78 ml1,651.83 ml
1.75 qt1,656.12 ml1,988.91 ml1,927.14 ml
2 qt1,892.71 ml2,273.05 ml2,202.44 ml
2.5 qt2,365.88 ml2,841.31 ml2,753.05 ml
3 qt2,839.06 ml3,409.57 ml3,303.66 ml
3.5 qt3,312.24 ml3,977.83 ml3,854.27 ml
4 qt3,785.41 ml4,546.09 ml4,404.88 ml
4.5 qt4,258.59 ml5,114.35 ml4,955.49 ml
5 qt4,731.76 ml5,682.61 ml5,506.10 ml
5.5 qt5,204.94 ml6,250.87 ml6,056.72 ml
6 qt5,678.12 ml6,819.14 ml6,607.33 ml
6.5 qt6,151.29 ml7,387.40 ml7,157.94 ml
7 qt6,624.47 ml7,955.66 ml7,708.55 ml
7.5 qt7,097.65 ml8,523.92 ml8,259.16 ml
8 qt7,570.82 ml9,092.18 ml8,809.77 ml
8.5 qt8,044.00 ml9,660.44 ml9,360.38 ml
9 qt8,517.18 ml10,228.70 ml9,910.99 ml
9.5 qt8,990.35 ml10,796.96 ml10,461.60 ml
10 qt9,463.53 ml11,365.23 ml11,012.21 ml
12 qt11,356.24 ml13,638.27 ml13,214.65 ml
16 qt15,141.65 ml18,184.36 ml17,619.54 ml
20 qt18,927.06 ml22,730.45 ml22,024.42 ml
Working from a figure in millilitres instead? Go to the millilitres to quarts converter.

How many millilitres are in the measures below a quart?

An American recipe measures with cups, fluid ounces and tablespoons, and all of them divide the same quart into equal parts. The second column says how many times each measure fits into a US liquid quart.
US measureMillilitresHow many fit in a quart
Liquid quart946.35 ml1
Pint473.18 ml2
Cup236.59 ml4
Fluid ounce29.57 ml32
Tablespoon14.79 ml64
Teaspoon4.93 ml192
The values follow the NIST tables, where a US pint is 4.731 765 × 10⁻⁴ cubic metres and a cup 2.365 882 × 10⁻⁴[1]. The teaspoon row is rounded to two decimal places, because the exact US teaspoon is 4.92892159375 millilitres.

How many millilitres are in an imperial quart and a dry quart?

The rows match the options on the Quart type switch. The third column says which division each value comes from, because all three quarts began as a part of a larger measure. The cubic-inch column shows the figure the definition of both US quarts starts from.
Quart typeMillilitresCubic inchesWhere the value comes fromOption on the switch
US liquid946.352946 ml57.75A quarter of the US gallon, which measures exactly 231 cubic inchesUS liquid
Imperial (UK)1,136.5225 ml69.3549A quarter of the imperial gallon, fixed at 4.54609 litresUK / Imperial
US dry1,101.220942715 ml67.2006A thirty-second part of the US bushelUS dry
The cubic inches for both US quarts come from the American table of measures: 57.75 for the liquid quart and 67.200 625 for the dry one[2]. An imperial quart is a quarter of the imperial gallon, which the NIST tables give as 4.546 09 × 10⁻³ cubic metres[1], and its cubic-inch figure is converted from millilitres.

Which number formats does this converter handle?

The field accepts each of these formats and converts it, so you don’t need to tidy a number before you paste it. The table shows what the converter does with each one, and the converter worked out the results itself.
What you typeWhat the converter showsHow we read it
2.52365.88 mlThe point is the decimal separator, so this is two and a half quarts.
2,52365.88 mlA comma followed by one digit is a European decimal comma, so we read it as two and a half.
1,5001419529.42 mlThree digits after the comma mark a thousands separator, so we count one thousand five hundred quarts. The note “Read as 1500. If you meant 1.5, type 1.5.” appears under the field.
1.5001419.53 mlA single point is always read as the decimal point, so this is one and a half quarts. The note “Read as 1.5. If you meant 1500, type 1500.” appears under the field.
1 5001419529.42 mlA space between the thousands is skipped, so this is one thousand five hundred quarts as well.
3/4709.76 mlWe convert a fraction with a slash directly, so it doesn’t need to become 0.75 first.
1½1419.53 mlA ½ character copied from a recipe or a label is added to the number in front of it.
2 qt1892.71 mlA unit copied from a label along with the number is ignored, and we convert the value alone.

How do you measure a quart from an American recipe?

The steps run from picking the measure to the number you pour into a jug with a metric scale.

  1. Pick the quart type

    A recipe published in the United States counts in liquid quarts, and a British recipe from before metrication in imperial quarts. You pick the measure with the Quart type switch under the fields, and the line under the switch gives the capacity of all three.
  2. Type the number of quarts

    The result appears as you type.
  3. Pour the result with the jug you have

    A jug with a metric scale takes the value straight. One quart sits 3.65 millilitres below the 950 mark, which is less than a teaspoon, so for cooking it is enough to fill to that mark.
  4. Carry the number onward

    The Copy result button puts the value on the clipboard. The Swap order button turns the converter round to millilitres into quarts, and the Clear all button empties both fields.

How does a quart compare with a metric measuring jug?

A one-litre jug holds 1,000 millilitres, 53.65 millilitres more than a US liquid quart. Filled to the litre mark and poured into a recipe written in quarts, it adds 3.63 US tablespoons.

The half-litre mark sits 26.82 millilitres above half a quart, which is 473.18 millilitres. At the quarter mark the gap narrows to 13.41 millilitres against a US cup of 236.59 millilitres.

A jug printed with both scales settles this without arithmetic, because the US side carries cups and fluid ounces while the metric side carries millilitres. Where only the metric scale is printed, the converter supplies the second reading, and the cups to ml converter handles the smaller steps.

Convert other units to Millilitres

Convert Quarts to other units

Sources

  1. NIST Special Publication 811, Appendix B.9 — conversion factors — National Institute of Standards and Technology
  2. NIST Handbook 44, Appendix C — General Tables of Units of Measurement — National Institute of Standards and Technology
  3. Resolution 6 of the 12th CGPM (1964) on the litre — Bureau International des Poids et Mesures

Every figure in the tables was computed from the unit definitions and checked arithmetically before publication. Historical values and the names of local units come from the sources listed above.

Content last reviewed: · written and checked by the Arteon team

Frequently asked questions about quarts and millilitres

Why is the imperial answer larger?

An imperial gallon is 4.54609 litres[1], and the American table of measures states outright that the British gallon runs about 20 percent larger than the US one[2]. A quart is a quarter of a gallon in both systems, so the same ratio carries over: 1,136.52 millilitres against 946.35 millilitres.

Arteon free tool screenshot: Convert quarts to millilitres

A question or a suggestion?

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