Fluid Ounce (US) to Cup (UK) Converter

Volume Converter

40 units available

Decimals:

From

To

0.104084

1 fl oz = 0.104084 cup (UK)

Formula:

cup (UK) = fl oz × 0.1040842731

With your value: 1 fl oz = 0.10408427 cup (UK)

How big is that?

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

Milk carton (1/30 your value)0.0338 fl oz

Kitchen bucket (1/3.0 your value)0.338 fl oz

Your value1.00 fl oz

Car fuel tank (1.7× your value)1.69 fl oz

Bathtub (6.8× your value)6.76 fl oz

Hot tub (51× your value)50.7 fl oz

Other Fluid Ounce (US) to Cup (UK) conversions

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

Fluid Ounce (US) to Cup (UK) Conversion Table

Fluid Ounce (US) (fl oz)	Cup (UK) (cup (UK))
0.5	0.052042
1	0.104084
2	0.208169
5	0.520421
10	1.040843
15	1.561264
20	2.081685
25	2.602107
50	5.204214
100	10.408427
250	26.021068
500	52.042137
1000	104.084273

Cup (UK) to Fluid Ounce (US) Conversion Table

Cup (UK) (cup (UK))	Fluid Ounce (US) (fl oz)
0.5	4.8038
1	9.607599
2	19.215199
5	48.037997
10	96.075994
15	144.113991
20	192.151988
25	240.189985
50	480.37997
100	960.75994
250	2,401.899851
500	4,803.799702
1000	9,607.599404

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.

Fluid Ounce (US) (fl oz)

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

Cup (UK) (cup (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 Fluid Ounce (US) to Cup (UK)

To convert from Fluid Ounce (US) (fl oz) to Cup (UK) (cup (UK)), multiply the value by 0.1040842731.

Formula: cup (UK) = fl oz × 0.1040842731

Reverse: fl oz = cup (UK) × 9.607599404

Step-by-Step Example

Start with your value in Fluid Ounce (US). For example: 5 fl oz
Multiply by the conversion factor: 5 x 0.1040842731
The result is: 0.520421 cup (UK)

About Fluid Ounce (US)

The US fluid ounce equals approximately 29.57 mL. It is commonly used for beverage and liquid measurements.

Common uses: beverages, cooking, cocktails.

About Cup (UK)

The cup (uk) (cup (UK)) is a unit of volume and capacity. One cup (uk) equals 0.284130625 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 Cup (UK) are in 1 Fluid Ounce (US)?

There are exactly 0.1040842731 Cup (UK) in 1 Fluid Ounce (US). This means the conversion factor from Fluid Ounce (US) to Cup (UK) is 0.1040842731.

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

The formula to convert Fluid Ounce (US) to Cup (UK) is: cup (UK) = fl oz × 0.1040842731. For example, to convert 10 Fluid Ounce (US) to Cup (UK), you would multiply 10 by 0.1040842731.

What is a Fluid Ounce (US)?