A cubic inch is the volume of a one-inch cube.
Cubic inches to Quarts Converter — in3 to qt
Convert Cubic inch (in3) to Quart (qt) using the exact conversion factor (1 cubic inch = 0.0173160173 quart). See the formula, worked examples, conversion table, history, and common uses.
Cubic inches to Quarts 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.
A US liquid quart is one quarter of a US gallon.
Result = input x 1.6387064e-5 / 0.000946352946.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic inches to Quarts
Cubic inch and 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. Specifically: A cubic inch is the volume of a one-inch cube, and a US liquid quart is one quarter of a US gallon.
Formula
quarts = cubic inches × 0.017316017316
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch equals 0.000016387064 base units, and 1 quart equals 0.000946352946 base units, so dividing one by the other gives the direct cubic inch-to-quart factor of 0.017316017316.
Simple example
1 in3 × 0.01731601732 = 0.0173160173 qt
1 cubic inch = 0.0173160173 quarts.
Real-world example
10 in3 × 0.01731601732 = 0.1731601732 qt
10 cubic inches = 0.1731601732 quarts.
Conversion table
| Cubic inch (in3) | Quart (qt) |
|---|---|
| 1 in3 | 0.0173160173 qt |
| 5 in3 | 0.0865800866 qt |
| 10 in3 | 0.1731601732 qt |
| 25 in3 | 0.4329004329 qt |
| 50 in3 | 0.8658008658 qt |
| 100 in3 | 1.731601732 qt |
Reverse conversion: Quart to Cubic inch
0.0173160173 qt × 57.75 = 0.9999999991 in3
0.0173160173 quarts = 0.9999999991 cubic inches.
cubic inches = quarts × 57.75
For a page dedicated to this direction, see Quart to Cubic inch.
Understanding the Cubic inch (in3)
A cubic inch is the volume of a one-inch cube.
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.
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 quarts are in 1 cubic inch?
1 cubic inch equals 0.0173160173 quarts, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch to quart?
Multiply the cubic inch value by 0.01731601732. The converter above does this instantly to whatever precision you set.
How do I convert quart back to cubic inch?
Use the reverse factor: 1 quart equals 57.75 cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch?
Cubic inch (in3) is a unit of volume.
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.
Is the cubic inch to quart 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.