A US liquid quart is one quarter of a US gallon.
Quarts to Kiloliters Converter — qt to kL
Convert Quart (qt) to Kiloliter (kL) using the exact conversion factor (1 quart = 0.0009463529 kiloliter). See the formula, worked examples, conversion table, history, and common uses.
Quarts to Kiloliters 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.
Kiloliter is 1000 liter units.
Result = input x 0.000946352946 / 1.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quarts to Kiloliters
Quart and Kiloliter 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
kiloliters = quarts × 0.000946352946
This factor comes from each unit's defined relationship to the category's base unit: 1 quart equals 0.000946352946 base units, and 1 kiloliter equals 1 base unit, so dividing one by the other gives the direct quart-to-kiloliter factor of 0.000946352946.
Simple example
1 qt × 0.000946352946 = 0.0009463529 kL
1 quart = 0.0009463529 kiloliters.
Real-world example
10 qt × 0.000946352946 = 0.0094635295 kL
10 quarts = 0.0094635295 kiloliters.
Conversion table
| Quart (qt) | Kiloliter (kL) |
|---|---|
| 1 qt | 0.0009463529 kL |
| 5 qt | 0.0047317647 kL |
| 10 qt | 0.0094635295 kL |
| 25 qt | 0.0236588237 kL |
| 50 qt | 0.0473176473 kL |
| 100 qt | 0.0946352946 kL |
Reverse conversion: Kiloliter to Quart
0.0009463529 kL × 1056.688209 = 0.9999999514 qt
0.0009463529 kiloliters = 0.9999999514 quarts.
quarts = kiloliters × 1056.68820943
For a page dedicated to this direction, see Kiloliter 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 Kiloliter (kL)
Kiloliter is 1000 liter units.
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 kiloliters are in 1 quart?
1 quart equals 0.0009463529 kiloliters, using the exact defined conversion factor rather than an estimate.
How do I convert quart to kiloliter?
Multiply the quart value by 0.000946352946. The converter above does this instantly to whatever precision you set.
How do I convert kiloliter back to quart?
Use the reverse factor: 1 kiloliter equals 1,056.688209 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 kiloliter?
Kiloliter (kL) is a unit of volume.
Is the quart to kiloliter 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)