Milliliters to Imperial quarts Converter — mL to imp qt

Convert Milliliter (mL) to Imperial quart (imp qt) using the exact conversion factor (1 milliliter = 0.000879877 imperial quart). See the formula, worked examples, conversion table, unit comparison, history, and common uses.

Milliliters to Imperial quarts converter

Converter

Volume Converter

Convert metric, US customary, imperial, cooking, dry, and industrial volume units.

Result 1 milliliter = 0.000879877 imperial quart
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From definition

Milliliter is 0.001 liter units.

To definition

An imperial quart is one quarter of an imperial gallon.

Formula

Result = input x 1e-6 / 0.0011365225.

Volume uses the cubic meter as the base unit.

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About Converting Milliliters to Imperial quarts

Milliliter and Imperial quart appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Milliliter is typically associated with standard small-volume unit worldwide, while Imperial quart is typically associated with united Kingdom and Commonwealth countries (historically).

Formula

imperial quarts = milliliters × 0.000879876993196

This factor comes from each unit's defined relationship to the category's base unit: 1 milliliter equals 0.000001 base units, and 1 imperial quart equals 0.0011365225 base units, so dividing one by the other gives the direct milliliter-to-imperial quart factor of 0.000879876993196.

Simple example

1 mL × 0.0008798769932 = 0.000879877 imp qt

1 milliliter = 0.000879877 imperial quarts.

Real-world example

10 mL × 0.0008798769932 = 0.0087987699 imp qt

10 milliliters = 0.0087987699 imperial quarts.

Conversion table

Milliliter (mL)Imperial quart (imp qt)
1 mL0.000879877 imp qt
5 mL0.004399385 imp qt
10 mL0.0087987699 imp qt
25 mL0.0219969248 imp qt
50 mL0.0439938497 imp qt
100 mL0.0879876993 imp qt

Reverse conversion: Imperial quart to Milliliter

0.000879877 imp qt × 1136.5225 = 1.000000008 mL

0.000879877 imperial quarts = 1.000000008 milliliters.

milliliters = imperial quarts × 1136.5225

For a page dedicated to this direction, see Imperial quart to Milliliter.

Milliliter vs. Imperial quart

AspectMilliliterImperial quart
FamilySI derived (metric prefix) unitUK/imperial customary unit
Typical useMedicine dosing (worldwide, including in the US)UK/Commonwealth liquid measurement in historical or specialized contexts
Where it's usedStandard small-volume unit worldwideUnited Kingdom and Commonwealth countries (historically)

Understanding the Milliliter

Milliliter (mL) measures volume. A milliliter is one-thousandth of a liter, equal to one cubic centimeter. It is classified as a SI derived (metric prefix) unit.

Where it's used: Standard small-volume unit worldwide

Uses of the Milliliter today

  • Medicine dosing (worldwide, including in the US)
  • Cooking and recipe measurement outside the US
  • Beverage and small-container labeling

History of the Milliliter

The milliliter follows directly from the liter via the 'milli-' SI prefix. It is notable as one of the few metric units in routine US use, since medicine dosing (syringes, liquid medication) is specified in milliliters even in the US.

Historical origin. Milliliter was not the invention of a single named person; it developed through the process described above.

Understanding the Imperial quart

Imperial quart (imp qt) measures volume. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 liters. It is classified as a UK/imperial customary unit.

Where it's used: United Kingdom and Commonwealth countries (historically)

Imperial quart vs. US quart. Like the gallon and pint, the imperial quart is about 20% larger than the US quart, following from Britain's 1824 gallon redefinition.

Uses of the Imperial quart today

  • UK/Commonwealth liquid measurement in historical or specialized contexts

History of the Imperial quart

The imperial quart follows directly from the 1824 imperial gallon as one-quarter of it, part of the same UK standardization that diverged from the US gallon system.

Historical origin. Imperial quart was not the invention of a single named person; it developed through the process described above.

Milliliter — sources

  • BIPM SI Brochure — SI prefixes — Defines 'milli-' as the prefix for 10⁻³.

Imperial quart — sources

  • UK Weights and Measures Act 1824 — Basis for the imperial quart via the imperial gallon.
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Frequently asked questions

How many imperial quarts are in 1 milliliter?

1 milliliter equals 0.000879877 imperial quarts, using the exact defined conversion factor rather than an estimate.

How do I convert milliliter to imperial quart?

Multiply the milliliter value by 0.0008798769932. The converter above does this instantly to whatever precision you set.

How do I convert imperial quart back to milliliter?

Use the reverse factor: 1 imperial quart equals 1,136.5225 milliliters. You can also use the swap control in the converter above to flip the direction instantly.

What is a milliliter?

Milliliter (mL) measures volume. A milliliter is one-thousandth of a liter, equal to one cubic centimeter. It is classified as a SI derived (metric prefix) unit.

What is a imperial quart?

Imperial quart (imp qt) measures volume. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 liters. It is classified as a UK/imperial customary unit.

Is the milliliter to imperial quart conversion exact?

Yes. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 liters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.

What is the difference between imperial quart vs. us quart?

Like the gallon and pint, the imperial quart is about 20% larger than the US quart, following from Britain's 1824 gallon redefinition.

Where is the milliliter still used today?

Standard small-volume unit worldwide