 Convert Imperial Fluid Ounces (fl oz) to Quarts (US Liquid) (qt) | fl oz in qt
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# Let's convert Imperial Fluid Ounces (fl oz) to Quarts (US Liquid) (qt)

This quick and easy calculator will convert Imperial Fluid Ounces (fl oz) to Quarts (US Liquid) (qt) and show formula, brief history on the units and quick maths for the conversion.

## Quick Reference for Converting Imperial Fluid Ounces to Quarts (US Liquid)

Formula
qt = fl oz / 33.31
Quick Rough Maths
To get the Quarts (US Liquid), divide the number of Imperial Fluid Ounces by 33.3
Imperial Fluid Ounces (fl oz) in 1 Quart (US Liquid)
There are 33.31 Imperial Fluid Ounces in 1 Quart (US Liquid)
Quarts (US Liquid) (qt) in 1 Ounce
There are 0.03 Quarts (US Liquid) in 1 Ounce

## Unit Information

Ounce
/ˈfluːɪd aʊns/
Symbol: fl oz
Unit System: Imperial

### What is the Ounce?

The imperial fluid ounce is a unit of volume from the imperial unit system and uses the symbol fl oz.

1 imperial fluid ounce is equal to 28.41306 ml. It is also equivalent to 0.9607599 US fl oz.

The imperial gallon was defined in Britain by Parliament in 1824 and established as ten pounds of water at a normal temperature. This was split into 4 quarts, each quart into 2 pints, each pint into 4 gills and each gill into 5 ounces.

Therefore; 1 imperial fluid ounce is equal to 1/20 imperial pint, 1/40 imperial quart and 1/160 imperial gallon.

Quart (US Liquid)
/kwɔːt/
Symbol: qt
Unit System: US Customary

### What is the Quart (US Liquid)?

The US liquid quart is a unit of volume in the US customary system with the symbol qt.

The US liquid quart is equal to 1/4 US liquid gallons, 2 US liquid pints, 4 US liquid cups, 8 US liquid gills or 32 US fluid ounces. The SI / metric equivalent is ≈ 0.946353 L.

The US liquid quart was based on exactly 57.75 in³ which was derived from the 1959 international yard and pound agreement whereby all traditional length and volume measures were legally standardised.