Cup (US) to Gallon (US) Converter

Volume Converter

40 units available

Decimals:

From

To

0.0625

1 cup = 0.0625 gal

Formula:

gal = cup × 0.0625

With your value: 1 cup = 0.0625 gal

How big is that?

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

Milk carton (1/2.4e+2 your value)0.00423 cup

Kitchen bucket (1/24 your value)0.0423 cup

Car fuel tank (1/4.7 your value)0.211 cup

Bathtub (1/1.2 your value)0.845 cup

Your value1.00 cup

Hot tub (6.3× your value)6.34 cup

Other Cup (US) to Gallon (US) conversions

2 cup to gal 3 cup to gal 4 cup to gal 5 cup to gal 6 cup to gal 7 cup to gal 8 cup to gal

Cup (US) to Gallon (US) Conversion Table

Cup (US) (cup)	Gallon (US) (gal)
0.5	0.03125
1	0.0625
2	0.125
5	0.3125
10	0.625
15	0.9375
20	1.25
25	1.5625
50	3.125
100	6.25
250	15.625
500	31.25
1000	62.5

Gallon (US) to Cup (US) Conversion Table

Gallon (US) (gal)	Cup (US) (cup)
0.5	8
1	16
2	32
5	80
10	160
15	240
20	320
25	400
50	800
100	1,600
250	4,000
500	8,000
1000	16,000

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 (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

Gallon (US) (gal)

Volume

Exact conversion

The US liquid gallon is exactly 231 cubic inches = 3.785 411 784 L.

Source: NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices

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

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

To convert from Cup (US) (cup) to Gallon (US) (gal), multiply the value by 0.0625.

Formula: gal = cup × 0.0625

Reverse: cup = gal × 16

Step-by-Step Example

Start with your value in Cup (US). For example: 5 cup
Multiply by the conversion factor: 5 x 0.0625
The result is: 0.3125 gal

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.

About Gallon (US)

The US gallon equals approximately 3.785 liters and is the standard unit for fuel and large liquid volumes in the United States.

Fun Fact: The US gallon is about 20% smaller than the imperial (UK) gallon.

Common uses: fuel (US), beverages, swimming pools.

Frequently Asked Questions

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

There are exactly 0.0625 Gallon (US) in 1 Cup (US). This means the conversion factor from Cup (US) to Gallon (US) is 0.0625.

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

The formula to convert Cup (US) to Gallon (US) is: gal = cup × 0.0625. For example, to convert 10 Cup (US) to Gallon (US), you would multiply 10 by 0.0625.

What is a Cup (US)?