A US liquid quart is one quarter of a US gallon.
Quarts to Deciliters Converter — qt to dL
Convert Quart (qt) to Deciliter (dL) using the exact conversion factor (1 quart = 9.46352946 deciliter). See the formula, worked examples, conversion table, history, and common uses.
Quarts to Deciliters 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.
Deciliter is 0.1 liter units.
Result = input x 0.000946352946 / 0.0001.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quarts to Deciliters
Quart and Deciliter 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
deciliters = quarts × 9.46352946
This factor comes from each unit's defined relationship to the category's base unit: 1 quart equals 0.000946352946 base units, and 1 deciliter equals 0.0001 base units, so dividing one by the other gives the direct quart-to-deciliter factor of 9.46352946.
Simple example
1 qt × 9.46352946 = 9.46352946 dL
1 quart = 9.46352946 deciliters.
Real-world example
10 qt × 9.46352946 = 94.6352946 dL
10 quarts = 94.6352946 deciliters.
Conversion table
| Quart (qt) | Deciliter (dL) |
|---|---|
| 1 qt | 9.46352946 dL |
| 5 qt | 47.3176473 dL |
| 10 qt | 94.6352946 dL |
| 25 qt | 236.5882365 dL |
| 50 qt | 473.176473 dL |
| 100 qt | 946.352946 dL |
Reverse conversion: Deciliter to Quart
9.46352946 dL × 0.1056688209 = 1 qt
9.46352946 deciliters = 1 quart.
quarts = deciliters × 0.105668820943
For a page dedicated to this direction, see Deciliter 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 Deciliter (dL)
Deciliter is 0.1 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 deciliters are in 1 quart?
1 quart equals 9.46352946 deciliters, using the exact defined conversion factor rather than an estimate.
How do I convert quart to deciliter?
Multiply the quart value by 9.46352946. The converter above does this instantly to whatever precision you set.
How do I convert deciliter back to quart?
Use the reverse factor: 1 deciliter equals 0.1056688209 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 deciliter?
Deciliter (dL) is a unit of volume.
Is the quart to deciliter 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)