Volume

What is a Quart?

The US quart equals one quarter of a gallon and is common for milk, motor oil, and cooking stocks.

Overview

The US quart equals exactly one quarter of a US gallon (0.946352946 liters) and is a common kitchen and motor-oil volume in the United States. The word 'quart' derives from the Latin 'quartus' meaning fourth. Milk and motor oil are commonly sold in quart containers (a quart of motor oil is 32 fl oz), and large recipes call for quart-sized stockpots. The US quart is distinct from the slightly larger UK imperial quart (1.137 L). It relates to the gallon (4 qt = 1 gal), the pint (2 pt = 1 qt), the cup (4 cups = 1 qt), the fluid ounce (32 fl oz = 1 qt), and the liter (1 US qt ≈ 0.946 L). The quart is a useful intermediate volume between the cup (small recipe measurements) and the gallon (bulk liquids).

Symbol
qt
Category
Volume
Plural
quarts

Convert Quart to all units

Live result
qt
Liter0.946353 LMilliliter946.35295 mlCubic Meter0.000946 m³US Gallon0.25 gal (US)UK Gallon0.208169 gal (UK)Fluid Ounce32 fl ozCup3.943137 cupPint2 ptTablespoon63.942767 tbspTeaspoon192.00006 tspBarrel0.005952 bblCubic Inch57.75 in³Cubic Foot0.03342 ft³Cubic Yard0.001238 yd³

Relationship to Other Volume Units

1 qt equals

Visual reference for how the quart relates to other volume units. Each row links to the full converter for that pair.

1 qt=0.946353 L1 qt=946.35295 ml1 qt=0.000946 m³1 qt=0.25 gal (US)1 qt=0.208169 gal (UK)1 qt=32 fl oz1 qt=3.943137 cup1 qt=2 pt1 qt=63.942767 tbsp1 qt=192.00006 tsp1 qt=0.005952 bbl1 qt=57.75 in³

See all 15 volume units in matrix view →

When Is the Quart Used?

  • US cooking recipe quantities
  • US motor-oil container sizes (1 quart bottles)
  • Canning and preserving containers
Real-world examples

A US quart of motor oil is 946 ml. A "quart of milk" in the US ≈ 1 L. UK "quart" is rare today.

Tips for Using the Quart

  • 1 US quart = 2 US pints = 946 ml ≈ 1 L.
  • 1 UK quart = 2 UK pints = 1137 ml.
  • Quarts appear more often in the US than UK in everyday usage.

Common Mistakes

  • Treating US and UK quarts as equal — 20% off.
  • Using quarts outside US — most metric countries do not use them at all.
  • Confusing quart (volume) with quarter (mass unit in older UK contexts).

Convert Quart to Other Volume Units

Quart to Liter
1 qt = 0.946353 L
Quart to Milliliter
1 qt = 946.35295 ml
Quart to Cubic Meter
1 qt = 0.000946 m³
Quart to US Gallon
1 qt = 0.25 gal (US)
Quart to UK Gallon
1 qt = 0.208169 gal (UK)
Quart to Fluid Ounce
1 qt = 32 fl oz
Quart to Cup
1 qt = 3.943137 cup
Quart to Pint
1 qt = 2 pt
Quart to Tablespoon
1 qt = 63.942767 tbsp
Quart to Teaspoon
1 qt = 192.00006 tsp
Quart to Barrel
1 qt = 0.005952 bbl
Quart to Cubic Inch
1 qt = 57.75 in³
Quart to Cubic Foot
1 qt = 0.03342 ft³
Quart to Cubic Yard
1 qt = 0.001238 yd³

Convert Other Units to Quart

Liter to Quart
1 L = 1.056688 qt
Milliliter to Quart
1 ml = 0.001057 qt
Cubic Meter to Quart
1 m³ = 1,056.6882 qt
US Gallon to Quart
1 gal (US) = 4 qt
UK Gallon to Quart
1 gal (UK) = 4.8038 qt
Fluid Ounce to Quart
1 fl oz = 0.03125 qt
Cup to Quart
1 cup = 0.253605 qt
Pint to Quart
1 pt = 0.5 qt
Tablespoon to Quart
1 tbsp = 0.015639 qt
Teaspoon to Quart
1 tsp = 0.005208 qt
Barrel to Quart
1 bbl = 168 qt
Cubic Inch to Quart
1 in³ = 0.017316 qt
Cubic Foot to Quart
1 ft³ = 29.922078 qt
Cubic Yard to Quart
1 yd³ = 807.8961 qt

FAQ About the Quart

3 questions
What does the Quart (qt) measure?
The quart measures volume. The US quart equals one quarter of a gallon and is common for milk, motor oil, and cooking stocks.
When is the Quart used?
The quart is used in: US cooking recipe quantities; US motor-oil container sizes (1 quart bottles); Canning and preserving containers. A US quart of motor oil is 946 ml. A "quart of milk" in the US ≈ 1 L. UK "quart" is rare today.
How accurate are conversions involving the Quart?
All conversions on Units Converter use NIST SP 811 and BIPM reference values, accurate to 8 significant figures.