FromgalUK
TocupUS

Gallon (UK) to Cup (US) Converter

Unit Converter

Instant · Precise · Universal

THEME
gal (UK)

47 units available

6 categories total

How to Convert Gallon (UK) to Cup (US)

To liters: multiply by 4.54609. To US gallons: multiply by 1.20095. To cubic meters: multiply by 0.00454609.

1 UK gal = 4 UK qt = 8 UK pt = 160 UK fl oz = 4.54609 L ≈ 1.201 US gal.

For example, 1 Gallon (UK) (gal (UK)) = 19.21519881 Cup (US) (cup (US)).

Gallon (UK) to Cup (US) — Common Values

Gallon (UK) (gal (UK))Cup (US) (cup (US))
0.11.921519881
0.59.607599404
119.21519881
238.43039762
596.07599404
10192.1519881
25480.3799702
50960.7599404
1001921.519881
5009607.599404
100019215.19881

About Gallon (UK) (gal (UK))

Definition

The UK (imperial) gallon is a unit of volume equal to 160 UK fluid ounces, or exactly 4.54609 liters.

Mathematical Relationship

1 UK gal = 4 UK qt = 8 UK pt = 160 UK fl oz = 4.54609 L ≈ 1.201 US gal.

Conversion Formula

To liters: multiply by 4.54609. To US gallons: multiply by 1.20095. To cubic meters: multiply by 0.00454609.

Practical Applications

UK road signs (mpg), older fuel consumption references, and some Caribbean and Middle Eastern markets that still use imperial units.

Interesting Facts

A UK gallon is about 20% larger than a US gallon. A car rated at 40 mpg (UK) gets only about 33 mpg (US).

Common Mistakes

Misinterpreting UK mpg as US mpg — UK figures look higher because the imperial gallon is larger.

Educational Tips

UK gallon ≈ 4.55 L ≈ 1.2 US gallons. The UK gallon was defined so that 1 gallon of water = 10 pounds.

About Cup (US) (cup (US))

Definition

The US cup is a unit of culinary volume equal to 8 US fluid ounces, or approximately 236.588 milliliters.

Mathematical Relationship

1 US cup = 8 US fl oz = 16 US tbsp = 48 US tsp = 1/2 US pint ≈ 236.588 mL.

Conversion Formula

To mL: multiply by 236.588. To liters: multiply by 0.236588. To UK cups: multiply by 0.832674.

Practical Applications

Measuring flour, sugar, milk, water, and other cooking ingredients. Standard in every American cookbok and food label.

Interesting Facts

The US cup, metric cup (250 mL), and Japanese cup (200 mL) are all different sizes — international recipes can be confusing!

Common Mistakes

Using a coffee mug as a 'cup' — mugs range from 200–350 mL. Always use a calibrated measuring cup for accuracy.

Educational Tips

Key conversions: 1 cup = 16 tbsp = 8 fl oz = 1/2 pint. For metric: 1 cup ≈ 240 mL (close enough for cooking).

Frequently Asked Questions

How do I convert Gallon (UK) to Cup (US)?
To liters: multiply by 4.54609. To US gallons: multiply by 1.20095. To cubic meters: multiply by 0.00454609.
What is 1 Gallon (UK) in Cup (US)?
1 Gallon (UK) (gal (UK)) = 19.21519881 Cup (US) (cup (US)).
What is a Gallon (UK)?
The UK (imperial) gallon is a unit of volume equal to 160 UK fluid ounces, or exactly 4.54609 liters.
What is a Cup (US)?
The US cup is a unit of culinary volume equal to 8 US fluid ounces, or approximately 236.588 milliliters.
Where is Gallon (UK) used in everyday life?
UK road signs (mpg), older fuel consumption references, and some Caribbean and Middle Eastern markets that still use imperial units.
What are common mistakes when converting Gallon (UK)?
Misinterpreting UK mpg as US mpg — UK figures look higher because the imperial gallon is larger.

Other Volume Conversions

Convert Gallon (UK) to All Volume Units

UntangleTools
UntangleTools
UntangleTools

UntangleTools

© 2026 UntangleTools. All Rights Reserved.