Quart (UK) to Fluid Ounce (UK) Converter

Volume Converter

40 units available

Decimals:

From

To

40

1 qt (UK) = 40 fl oz (UK)

Formula:

fl oz (UK) = qt (UK) × 40

With your value: 1 qt (UK) = 40 fl oz (UK)

How big is that?

Everyday references on a logarithmic scale, all expressed in quart (uk) so you can sanity-check the result.

Milk carton (1/1.1e+3 your value)0.000880 qt (UK)

Kitchen bucket (1/1.1e+2 your value)0.00880 qt (UK)

Car fuel tank (1/23 your value)0.0440 qt (UK)

Bathtub (1/5.7 your value)0.176 qt (UK)

Your value1.00 qt (UK)

Hot tub (1.3× your value)1.32 qt (UK)

Other Quart (UK) to Fluid Ounce (UK) conversions

2 qt (UK) to fl oz (UK)3 qt (UK) to fl oz (UK)4 qt (UK) to fl oz (UK)5 qt (UK) to fl oz (UK)6 qt (UK) to fl oz (UK)7 qt (UK) to fl oz (UK)8 qt (UK) to fl oz (UK)

Quart (UK) to Fluid Ounce (UK) Conversion Table

Quart (UK) (qt (UK))	Fluid Ounce (UK) (fl oz (UK))
0.5	20
1	40
2	80
5	200
10	400
15	600
20	800
25	1,000
50	2,000
100	4,000
250	10,000
500	20,000
1000	40,000

Fluid Ounce (UK) to Quart (UK) Conversion Table

Fluid Ounce (UK) (fl oz (UK))	Quart (UK) (qt (UK))
0.5	0.0125
1	0.025
2	0.05
5	0.125
10	0.25
15	0.375
20	0.5
25	0.625
50	1.25
100	2.5
250	6.25
500	12.5
1000	25

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Quart (UK) (qt (UK))

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Fluid Ounce (UK) (fl oz (UK))

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Quart (UK) to Fluid Ounce (UK)

To convert from Quart (UK) (qt (UK)) to Fluid Ounce (UK) (fl oz (UK)), multiply the value by 40.

Formula: fl oz (UK) = qt (UK) × 40

Reverse: qt (UK) = fl oz (UK) × 0.025

Step-by-Step Example

Start with your value in Quart (UK). For example: 5 qt (UK)
Multiply by the conversion factor: 5 x 40
The result is: 200 fl oz (UK)

About Quart (UK)

The quart (uk) (qt (UK)) is a unit of volume and capacity. One quart (uk) equals 1.1365225 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: volume calculations, engineering and science, education.

About Fluid Ounce (UK)

The fluid ounce (uk) (fl oz (UK)) is a unit of volume and capacity. One fluid ounce (uk) equals 0.0284130625 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: volume calculations, engineering and science, education.

Frequently Asked Questions

How many Fluid Ounce (UK) are in 1 Quart (UK)?

There are exactly 40 Fluid Ounce (UK) in 1 Quart (UK). This means the conversion factor from Quart (UK) to Fluid Ounce (UK) is 40.

What is the formula to convert Quart (UK) to Fluid Ounce (UK)?

The formula to convert Quart (UK) to Fluid Ounce (UK) is: fl oz (UK) = qt (UK) × 40. For example, to convert 10 Quart (UK) to Fluid Ounce (UK), you would multiply 10 by 40.

What is a Quart (UK)?