Cup (UK) to Cup (US) Converter

Volume Converter

40 units available

Decimals:

From

To

1.20095

1 cup (UK) = 1.20095 cup

Formula:

cup = cup (UK) × 1.2009499255

With your value: 1 cup (UK) = 1.20094993 cup

How big is that?

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

Milk carton (1/2.8e+2 your value)0.00352 cup (UK)

Kitchen bucket (1/28 your value)0.0352 cup (UK)

Car fuel tank (1/5.7 your value)0.176 cup (UK)

Bathtub (1/1.4 your value)0.704 cup (UK)

Your value1.00 cup (UK)

Hot tub (5.3× your value)5.28 cup (UK)

Other Cup (UK) to Cup (US) conversions

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

Cup (UK) to Cup (US) Conversion Table

Cup (UK) (cup (UK))	Cup (US) (cup)
0.5	0.600475
1	1.20095
2	2.4019
5	6.00475
10	12.009499
15	18.014249
20	24.018999
25	30.023748
50	60.047496
100	120.094993
250	300.237481
500	600.474963
1000	1,200.949926

Cup (US) to Cup (UK) Conversion Table

Cup (US) (cup)	Cup (UK) (cup (UK))
0.5	0.416337
1	0.832674
2	1.665348
5	4.163371
10	8.326742
15	12.490113
20	16.653484
25	20.816855
50	41.633709
100	83.267418
250	208.168546
500	416.337092
1000	832.674185

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.

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

Cup (US) (cup)

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 Cup (UK) to Cup (US)

To convert from Cup (UK) (cup (UK)) to Cup (US) (cup), multiply the value by 1.2009499255.

Formula: cup = cup (UK) × 1.2009499255

Reverse: cup (UK) = cup × 0.8326741846

Step-by-Step Example

Start with your value in Cup (UK). For example: 5 cup (UK)
Multiply by the conversion factor: 5 x 1.2009499255
The result is: 6.00475 cup

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.

About Cup (US)

The US cup equals approximately 236.6 mL and is a standard cooking measurement in the United States.

Common uses: baking, cooking, recipes.

Frequently Asked Questions

How many Cup (US) are in 1 Cup (UK)?

There are exactly 1.2009499255 Cup (US) in 1 Cup (UK). This means the conversion factor from Cup (UK) to Cup (US) is 1.2009499255.

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

The formula to convert Cup (UK) to Cup (US) is: cup = cup (UK) × 1.2009499255. For example, to convert 10 Cup (UK) to Cup (US), you would multiply 10 by 1.2009499255.

What is a Cup (UK)?