Skip to content
UnitCalculators.com

US quarts to litres

Multiply US quarts by 0.946353 to get litres.

1 qt = 0.946353 LNIST HB 44 · BIPM SI
qt
4.7318L

5 qt = 4.7318 L

How to convert US quarts to litres

The litre is a cubic decimetre (0.001 m³), the SI-accepted metric unit of volume. The US quart is one quarter of a US gallon (0.946352946 litres).

Worked example — 5 qt: 5 × 0.946353 = 4.7318 L.

US quarts to litres table

Common conversions.
US quartsLitres
1 qt0.946353 L
2 qt1.8927 L
3 qt2.8391 L
4 qt3.7854 L
5 qt4.7318 L
6 qt5.6781 L
8 qt7.5708 L
10 qt9.4635 L
12 qt11.3562 L

Reverse and related

About US quarts and litres

US quart (qt)

1 qt = 0.946353 L

Definition. One quarter of a US gallon (0.946352946 litres)

History and origin

The quart is literally a quarter of a gallon, a division used in English measure for centuries. The US quart is one quarter of the US gallon, about 0.946 litres.

Current use

Quarts are used in the United States for milk, juice and cooking stock, and as a handy kitchen measure.

Source: NIST Handbook 44, Appendix C §2 (U.S. Customary Units) and §5 (Tables of Equivalents)

Litre (L)

1 L = 1.0567 qt

Definition. A cubic decimetre (0.001 m³), the SI-accepted metric unit of volume

History and origin

The litre was introduced in France in 1795 as a unit of volume, defined as one cubic decimetre. It is not an SI base unit but is accepted for use with the SI.

Current use

Litres measure drinks and bottles, fuel and engine sizes across the metric world, and appear on beverage containers almost everywhere.

Source: BIPM SI Brochure (2019); the litre is an SI-accepted unit (1 L = 1 dm³)

Where people use this

US quarts: milk and juice, cooking stock. Litres: drinks and bottles, fuel, engine sizes. 1 US quart is about 0.946 L.

How we know this is right
The factor is fixed by the standards that define the units, not chosen — so it is exact, not a measurement:
1 L = 1.056688209 qt, so 1 qt = 1 ÷ 1.056688209 = 0.946353 L.

Every value is carried to full double precision; the display is rounded.

Sources: BIPM SI Brochure (2019); the litre is an SI-accepted unit (1 L = 1 dm³); NIST Handbook 44, Appendix C §2 (U.S. Customary Units) and §5 (Tables of Equivalents).

Questions people ask

How many litres in a US quart?

One US quart is about 0.946 litres.

How many litres is 2 quarts?

2 US quarts is about 1.89 litres.

Is a quart about a litre?

Close — a US quart is 0.946 L, a little under a litre.

All US quart conversions