Quart (qt)
A US customary unit of volume equal to 2 pints
The Quart (qt) is a unit of volume that developed alongside the needs of commerce, cooking, and chemistry. Volume measurement was crucial for trade in liquids like wine, oil, and grain, leading to a profusion of regional standards that varied even between neighboring towns. The metric system's liter and its multiples brought standardization to most of the world, though the US customary volume system of cups, pints, quarts, and gallons persists in American cooking and everyday use. The Quart belongs to one of these traditions.
Accurate volume measurement is critical in engineering, science, commerce, and everyday life. Using the correct unit and applying conversions precisely prevents errors that can be costly or dangerous in professional applications.
Conversion Table
| Unit | Symbol | 1 qt = |
|---|---|---|
| Liter | L | 0.946353 L |
| Milliliter | mL | 946.353 mL |
| Gallon (US) | gal | 0.25 gal |
| Fluid Ounce | fl oz | 32 fl oz |
| Cup | cup | 4 cup |
| Tablespoon | tbsp | 63.9999 tbsp |
| Teaspoon | tsp | 192 tsp |
| Pint | pt | 2 pt |
Conversions Involving Quart
Liter → Quart
L → qt
Milliliter → Quart
mL → qt
Gallon (US) → Quart
gal → qt
Fluid Ounce → Quart
fl oz → qt
Cup → Quart
cup → qt
Tablespoon → Quart
tbsp → qt
Teaspoon → Quart
tsp → qt
Pint → Quart
pt → qt
Quart → Liter
qt → L
Quart → Milliliter
qt → mL
Quart → Gallon (US)
qt → gal
Quart → Fluid Ounce
qt → fl oz
Quart → Cup
qt → cup
Quart → Tablespoon
qt → tbsp
Quart → Teaspoon
qt → tsp
Quart → Pint
qt → pt
Common Uses of the Quart
- •Cooking — measuring liquid ingredients in recipes
- •Fuel and fluid systems — sizing tanks, reservoirs, and pipelines
- •Chemistry — measuring solutions and reagents in laboratory procedures
- •Medicine — prescribing and administering liquid medications
- •Environmental science — measuring water discharge and rainfall volume
Did You Know?
The liter was originally defined in 1795 as the volume of one kilogram of water at 4°C — creating a convenient link between mass and volume for water. The Quart is part of the broader volume measurement story that connects everyday cooking to industrial fluid handling.