How do I convert Cup (US) to US gallon (gal)?

1 cup equals 0.0625 gal using SI-based conversion and precise factors.

What is the formula to convert Cup (US) to US gallon (gal)?

This is a linear unit conversion using a constant factor between units.

How can I share a direct cup to gal result?

Use the shareable URL: https://measurecalc.com/convert/cup-to-us-gallon/1

Convert Cup (US) to US gallon (gal)

Q: Is Cup (US) to US gallon (gal) conversion exact?

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Category: Volume

Value From To Precision

0.0625 gal

1 cup = 0.0625 gal

High-precision rounding: 6 decimals

How to convert cup (us) to us gallon (gal)

Volume measures the space a substance occupies. SI uses cubic meters and liters; customary units like gallons, quarts, and pints persist in recipes, fuel, and containers. Accurate volume work often requires temperature and density considerations (e.g., for fuels).

This converter calculates Cup (US) to US gallon (gal) values by using the correct conversion rule for the Volume category. For linear units, standardized factors are used. For temperature, the calculator applies the proper formula with offsets.

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Quick conversion table

Handy values for Cup (US) to US gallon (gal). Click a value to open that exact result.

Cup (US)	US gallon (gal)
1	0.0625
0.5	0.03125
2.5	0.15625
10	0.625

Conversion formula

Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).

Common mistakes

Mixing US gallons (3.785 L) with Imperial gallons (4.546 L).
Assuming kitchen ‘cup’ equals the same volume in every country.

Unit facts

Cup (US): A US cup is ≈236.588 mL. Recipe ‘cups’ vary by country—convert carefully.
US gallon (gal): The US gallon is exactly 3.785411784 L; used for fuel, beverages, and bulk liquids.

About Cup (US)

Cup (US)

≈ 236.588 mL. Informal cooking measure; exact value may vary by country and cookbook conventions.

History: Culinary traditions standardized local cup sizes; US customary cup is common in recipes and nutrition.

About US gallon (gal)

US gallon (gal)

Exactly 3.785411784 L. Used for fuel, containers, and recipes in the US. Beware of imperial gallon differences.

History: US defined the gallon separately from the British imperial revision; modern value is exact.

Frequently asked questions

How many US gallon (gal) are in one Cup (US)?

1 Cup (US) equals 0.0625 US gallon (gal).

Is Cup (US) to US gallon (gal) conversion exact?

Many unit conversions are exact by definition, while others use standardized conversion constants.

What is the fastest way to convert Cup (US) to US gallon (gal)?

Enter a value in Cup (US), choose US gallon (gal) as the target unit, and the calculator will instantly return the result.

Convert Cup (US) to other units

cup → bbl Barrel (oil, bbl)
cup → ft3 Cubic foot (ft³)
cup → in3 Cubic inch (in³)
cup → m3 Cubic meter (m³)
cup → gal_uk Imperial gallon (gal UK)
cup → l Liter (L)

Convert other units to US gallon (gal)

bbl → gal Barrel (oil, bbl)
ft3 → gal Cubic foot (ft³)
in3 → gal Cubic inch (in³)
m3 → gal Cubic meter (m³)
gal_uk → gal Imperial gallon (gal UK)
l → gal Liter (L)