A US liquid quart is one quarter of a US gallon.
Quarts to Cubic Millimeters Converter — qt to mm3
Convert Quart (qt) to Cubic Millimeter (mm3) using the exact conversion factor (1 quart = 946,352.946 cubic millimeter). See the formula, worked examples, conversion table, history, and common uses.
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 0.000946352946 / 1e-9.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quarts to Cubic Millimeters
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. Quart is most often used for us recipe measurement (larger liquid volumes).
Formula
cubic millimeters = quarts × 946352.946
This factor comes from each unit's defined relationship to the category's base unit: 1 quart equals 0.000946352946 base units, and 1 cubic millimeter equals 1e-9 base units, so dividing one by the other gives the direct quart-to-cubic millimeter factor of 946352.946.
Simple example
1 qt × 946352.946 = 946,352.946 mm3
1 quart = 946,352.946 cubic millimeters.
Real-world example
10 qt × 946352.946 = 9,463,529.46 mm3
10 quarts = 9,463,529.46 cubic millimeters.
Conversion table
| Quart (qt) | Cubic Millimeter (mm3) |
|---|---|
| 1 qt | 946,352.946 mm3 |
| 5 qt | 4,731,764.73 mm3 |
| 10 qt | 9,463,529.46 mm3 |
| 25 qt | 23,658,823.65 mm3 |
| 50 qt | 47,317,647.3 mm3 |
| 100 qt | 94,635,294.6 mm3 |
Reverse conversion: Cubic Millimeter to Quart
1 mm3 × 0.000001056688209 = 0.0000010567 qt
1 cubic millimeter = 0.0000010567 quarts.
quarts = cubic millimeters × 0.00000105668820943
For a page dedicated to this direction, see Cubic Millimeter to Quart.
Understanding the Quart
Quart (qt) measures volume. The US liquid quart is exactly one-quarter of a US gallon: 0.946352946 liters. It is classified as a US customary unit.
Where it's used: United States (cooking, dairy, motor oil packaging)
Uses of the Quart today
- US recipe measurement (larger liquid volumes)
- US motor oil and automotive fluid packaging
- US dairy and beverage packaging (quart containers)
History of the Quart
The quart ('quarter' of a gallon) follows the same English wine-gallon lineage as the US gallon, retained by the US after England moved to a different imperial standard in 1824.
Historical origin. 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.
Quart — sources
- NIST Handbook 44, Appendix C — General tables of units including the US quart definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic millimeters are in 1 quart?
1 quart equals 946,352.946 cubic millimeters, using the exact defined conversion factor rather than an estimate.
How do I convert quart to cubic millimeter?
Multiply the quart value by 946352.946. The converter above does this instantly to whatever precision you set.
How do I convert cubic millimeter back to quart?
Use the reverse factor: 1 cubic millimeter equals 0.0000010567 quarts. You can also use the swap control in the converter above to flip the direction instantly.
What is a quart?
Quart (qt) measures volume. The US liquid quart is exactly one-quarter of a US gallon: 0.946352946 liters. It is classified as a US customary unit.
What is a cubic millimeter?
Cubic Millimeter (mm3) is a unit of volume.
Is the quart to cubic millimeter conversion exact?
Yes. The US liquid quart is exactly one-quarter of a US gallon: 0.946352946 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.
Where is the quart still used today?
United States (cooking, dairy, motor oil packaging)