Skip to the calculator
Rule Calculator

Convert Imperial quarts to Milliliters

1 imperial quart is 1,136.52 ml. One imperial quart is exactly 1136.5225 milliliters.

One imperial quart is 1136.5225 milliliters. To convert imperial quarts to milliliters, multiply by 1136.5225; to go the other way, divide by 1136.5225 or multiply by 8.7988 × 10^-4. The factor is exact rather than rounded: it follows from NIST Handbook 130. A quarter of an imperial gallon, 1.1365225 liters exactly.

Factor checked against the defining standard · How we check

Milliliters
1,136.52 ml
Imperial quarts × 1136.5225
1 * 1136.52251,136.523 ml

1 imperial quart in every volume unit

1 imperial quart expressed in every volume unit
UnitValueExact factor
US teaspoons230.5823857 tsp× 230.582385697
US tablespoons76.86079523 tbsp× 76.8607952323
US fluid ounces38.43039762 fl oz× 38.4303976162
US cups4.803799702 cup× 4.80379970202
US pints2.401899851 pt× 2.40189985101
US quarts1.200949926 qt× 1.2009499255
US gallons0.3002374814 gal× 0.300237481376
milliliters1,136.5225 ml× 1,136.5225
liters1.1365225 L× 1.1365225
imperial gallons0.25 gal (UK)× 0.25
imperial quarts (as entered)1 qt (UK)—
imperial pints2 pt (UK)× 2
imperial fluid ounces40 fl oz (UK)× 40
imperial gills8 gi (UK)× 8
cubic millimetres1,136,522.5 mm³× 1,136,522.5
cubic centimetres1,136.5225 cm³× 1,136.5225
cubic inches69.3548582 in³× 69.3548581979
cubic feet0.04013591331 ft³× 0.040135913309
cubic yards0.001486515308 yd³× 0.00148651530774
cubic metres0.0011365225 m³× 0.0011365225

Factors are entered by hand from NIST Handbook 130 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

The same converter answers this pair however it is written: imperial quarts to millilitres is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.

How do you convert imperial quarts to milliliters? The converter and the working

  1. 1.Take the measurement in imperial quarts.
  2. 2.Multiply by 1136.5225 — that is how many milliliters fit in one imperial quart.
  3. 3.To go back the other way, divide by 1136.5225, or multiply by 8.7988 × 10^-4.

Worked example: 25 imperial quarts to milliliters

Formula
qt (UK) × 1136.5225 = ml
Arithmetic
25 × 1136.5225 = 28,413.06 ml
Answer
25 qt (UK) = 28,413.06 ml

The factor is exact, so this figure is exact too — only the display is rounded.

Imperial quarts to milliliters conversion table

Imperial quarts to milliliters conversion table
Imperial quartsMilliliters
1 qt (UK)1,136.52 ml
2 qt (UK)2,273.05 ml
3 qt (UK)3,409.57 ml
4 qt (UK)4,546.09 ml
5 qt (UK)5,682.61 ml
6 qt (UK)6,819.14 ml
7 qt (UK)7,955.66 ml
8 qt (UK)9,092.18 ml
9 qt (UK)10,228.7 ml
10 qt (UK)11,365.23 ml
12 qt (UK)13,638.27 ml
15 qt (UK)17,047.84 ml
20 qt (UK)22,730.45 ml
25 qt (UK)28,413.06 ml
50 qt (UK)56,826.13 ml
100 qt (UK)113,652.25 ml
200 qt (UK)227,304.5 ml
300 qt (UK)340,956.75 ml
500 qt (UK)568,261.25 ml
1000 qt (UK)1,136,522.5 ml
2000 qt (UK)2,273,045 ml
5000 qt (UK)5,682,612.5 ml
10000 qt (UK)11,365,225 ml

What is an imperial quart?

A quarter of an imperial gallon, 1.1365225 liters exactly. It is larger than a US quart by the same fifth that separates the two gallons.

What is a milliliter?

One thousandth of a liter, and exactly one cubic centimeter.

How many milliliters are in an imperial quart?

One imperial quart is 1136.5225 milliliters, exactly. Going the other way, one milliliter is 8.7988 × 10^-4 imperial quarts. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every volume unit here

The whole group — 20 units with their symbols and the size of each one in liters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to an imperial quart.

Source: NIST Handbook 130 — US customary liquid measure

Cite this page

APA
Rule Calculator. (2026). Convert Imperial quarts to milliliters. Rule Calculator. https://rulecalculators.com/convert/imperial-quart-to-milliliter
MLA
"Convert Imperial quarts to milliliters." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/imperial-quart-to-milliliter.
Chicago
Rule Calculator. "Convert Imperial quarts to milliliters." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/imperial-quart-to-milliliter.

The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.

Questions people actually ask

How many milliliters are in an imperial quart?
1136.5225. One thousandth of a liter, and exactly one cubic centimeter.
How do I convert milliliters back to imperial quarts?
Divide by 1136.5225, or multiply by 8.7988 × 10^-4 — they are the same operation.

Other volume conversions

Milliliters to imperial quarts — the same conversion the other way.

Calculators that work in volume