An imperial quart is one quarter of an imperial gallon.
Imperial quarts to Cubic Millimeters Converter — imp qt to mm3
Convert Imperial quart (imp qt) to Cubic Millimeter (mm3) using the exact conversion factor (1 imperial quart = 1,136,522.5 cubic millimeter). See the formula, worked examples, conversion table, history, and common uses.
Imperial quarts to Cubic Millimeters converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
Cubic metric volume unit.
Result = input x 0.0011365225 / 1e-9.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial quarts to Cubic Millimeters
Imperial quart and Cubic Millimeter 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. Imperial quart is most often used for uk/commonwealth liquid measurement in historical or specialized contexts.
Formula
cubic millimeters = imperial quarts × 1136522.5
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial quart equals 0.0011365225 base units, and 1 cubic millimeter equals 1e-9 base units, so dividing one by the other gives the direct imperial quart-to-cubic millimeter factor of 1136522.5.
Simple example
1 imp qt × 1136522.5 = 1,136,522.5 mm3
1 imperial quart = 1,136,522.5 cubic millimeters.
Real-world example
10 imp qt × 1136522.5 = 11,365,225 mm3
10 imperial quarts = 11,365,225 cubic millimeters.
Conversion table
| Imperial quart (imp qt) | Cubic Millimeter (mm3) |
|---|---|
| 1 imp qt | 1,136,522.5 mm3 |
| 5 imp qt | 5,682,612.5 mm3 |
| 10 imp qt | 11,365,225 mm3 |
| 25 imp qt | 28,413,062.5 mm3 |
| 50 imp qt | 56,826,125 mm3 |
| 100 imp qt | 113,652,250 mm3 |
Reverse conversion: Cubic Millimeter to Imperial quart
1 mm3 × 8.79877e-7 = 8.79877e-7 imp qt
1 cubic millimeter = 8.79877e-7 imperial quarts.
imperial quarts = cubic millimeters × 8.79877e-7
For a page dedicated to this direction, see Cubic Millimeter to Imperial quart.
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.
Understanding the Cubic Millimeter (mm3)
Cubic metric volume unit.
Imperial quart — sources
- UK Weights and Measures Act 1824 — Basis for the imperial quart via the imperial gallon.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic millimeters are in 1 imperial quart?
1 imperial quart equals 1,136,522.5 cubic millimeters, using the exact defined conversion factor rather than an estimate.
How do I convert imperial quart to cubic millimeter?
Multiply the imperial quart value by 1136522.5. The converter above does this instantly to whatever precision you set.
How do I convert cubic millimeter back to imperial quart?
Use the reverse factor: 1 cubic millimeter equals 8.79877e-7 imperial quarts. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a cubic millimeter?
Cubic Millimeter (mm3) is a unit of volume.
Is the imperial quart to cubic millimeter 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 imperial quart still used today?
United Kingdom and Commonwealth countries (historically)