A liter is one cubic decimeter.
Liters to Quarts Converter — L to qt
Convert Liter (L) to Quart (qt) using the exact conversion factor (1 liter = 1.056688209 quart). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Liters 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 0.001 / 0.000946352946.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Liters to Quarts
Liter 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. Liter is typically associated with standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts, while Quart is typically associated with united States (cooking, dairy, motor oil packaging).
Formula
quarts = liters × 1.05668820943
This factor comes from each unit's defined relationship to the category's base unit: 1 liter equals 0.001 base units, and 1 quart equals 0.000946352946 base units, so dividing one by the other gives the direct liter-to-quart factor of 1.05668820943.
Simple example
1 L × 1.056688209 = 1.056688209 qt
1 liter = 1.056688209 quarts.
Real-world example
10 L × 1.056688209 = 10.56688209 qt
10 liters = 10.56688209 quarts.
Conversion table
| Liter (L) | Quart (qt) |
|---|---|
| 1 L | 1.056688209 qt |
| 5 L | 5.283441047 qt |
| 10 L | 10.56688209 qt |
| 25 L | 26.41720524 qt |
| 50 L | 52.83441047 qt |
| 100 L | 105.6688209 qt |
Reverse conversion: Quart to Liter
1.056688209 qt × 0.946352946 = 0.9999999996 L
1.056688209 quarts = 0.9999999996 liters.
liters = quarts × 0.946352946
For a page dedicated to this direction, see Quart to Liter.
Liter vs. Quart
| Aspect | Liter | Quart |
|---|---|---|
| Family | Non-SI metric unit accepted for use with SI | US customary unit |
| Typical use | Beverage, fuel, and liquid product packaging worldwide | US recipe measurement (larger liquid volumes) |
| Where it's used | Standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts | United States (cooking, dairy, motor oil packaging) |
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.
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.
Liter — sources
- BIPM SI Brochure — Non-SI units accepted for use with SI — Current cubic-decimeter definition of the liter.
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 liter?
1 liter equals 1.056688209 quarts, using the exact defined conversion factor rather than an estimate.
How do I convert liter to quart?
Multiply the liter value by 1.056688209. The converter above does this instantly to whatever precision you set.
How do I convert quart back to liter?
Use the reverse factor: 1 quart equals 0.946352946 liters. You can also use the swap control in the converter above to flip the direction instantly.
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.
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 liter 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.
Where is the liter still used today?
Standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts