A US liquid quart is one quarter of a US gallon.
Quarts to Liters Converter — qt to L
Convert Quart (qt) to Liter (L) using the exact conversion factor (1 quart = 0.946352946 liter). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Quarts to Liters converter
Converter
Cooking Converter
Convert cooking volume and mass units used in recipes and nutrition workflows.
Context values
Some unit families need one extra value for a physically accurate result.
A liter is one cubic decimeter.
Result = input x 0.000946352946 / 0.001.
Volume units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Quarts to Liters
Quart and Liter both show up in recipes, and converting between them matters whenever a recipe from one country's cookbook needs to be followed with another country's measuring tools. Quart is typically associated with united States (cooking, dairy, motor oil packaging), while Liter is typically associated with standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts.
Formula
liters = quarts × 0.946352946
This factor comes from each unit's defined relationship to the category's base unit: 1 quart equals 0.000946352946 base units, and 1 liter equals 0.001 base units, so dividing one by the other gives the direct quart-to-liter factor of 0.946352946.
Simple example
1 qt × 0.946352946 = 0.946352946 L
1 quart = 0.946352946 liters.
Real-world example
2 qt × 0.946352946 = 1.892705892 L
2 quarts = 1.892705892 liters.
Conversion table
| Quart (qt) | Liter (L) |
|---|---|
| 0.25 qt | 0.2365882365 L |
| 0.5 qt | 0.473176473 L |
| 1 qt | 0.946352946 L |
| 2 qt | 1.892705892 L |
| 4 qt | 3.785411784 L |
| 8 qt | 7.570823568 L |
Reverse conversion: Liter to Quart
0.946352946 L × 1.056688209 = 1 qt
0.946352946 liters = 1 quart.
quarts = liters × 1.05668820943
For a page dedicated to this direction, see Liter to Quart.
Quart vs. Liter
| Aspect | Quart | Liter |
|---|---|---|
| Family | US customary unit | Non-SI metric unit accepted for use with SI |
| Typical use | US recipe measurement (larger liquid volumes) | Beverage, fuel, and liquid product packaging worldwide |
| Where it's used | United States (cooking, dairy, motor oil packaging) | Standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts |
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 Liter
Liter (L) measures volume. A liter is defined as exactly one cubic decimeter (0.001 cubic meters). It is classified as a Non-SI metric unit accepted for use with SI.
Where it's used: Standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts
Uses of the Liter today
- Beverage, fuel, and liquid product packaging worldwide
- Cooking and recipe measurement in metric countries
- Laboratory and scientific volume measurement
History of the Liter
The liter was introduced with the French metric system in 1795, originally defined as the volume of one kilogram of pure water at its freezing point — tying volume, mass, and the meter together.
Between 1901 and 1964, the liter was briefly redefined as the volume of exactly one kilogram of water at its maximum density (about 4 °C), which made it very slightly larger than a cubic decimeter. It was redefined back to exactly one cubic decimeter in 1964, the definition still used today.
Historical origin. Liter 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.
Liter — sources
- BIPM SI Brochure — Non-SI units accepted for use with SI — Current cubic-decimeter definition of the liter.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liters are in 1 quart?
1 quart equals 0.946352946 liters, using the exact defined conversion factor rather than an estimate.
How do I convert quart to liter?
Multiply the quart value by 0.946352946. The converter above does this instantly to whatever precision you set.
How do I convert liter back to quart?
Use the reverse factor: 1 liter equals 1.056688209 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 liter?
Liter (L) measures volume. A liter is defined as exactly one cubic decimeter (0.001 cubic meters). It is classified as a Non-SI metric unit accepted for use with SI.
Is the quart to liter conversion exact?
Yes. A liter is defined as exactly one cubic decimeter (0.001 cubic meters). 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)