Convert US gallon (gal) (gal) to Cup (US) (cup)
Category: Volume
1 gal = 16 cup
High-precision rounding: 6 decimals
How to convert us gallon (gal) to cup (us)
We convert by pivoting through the SI base unit for Volume and applying exact factors where applicable.
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Quick conversion table
Handy values for US gallon (gal) → Cup (US). Click a value to open that exact result.
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
- US gallon (gal): The US gallon is exactly 3.785411784 L; used for fuel, beverages, and bulk liquids.
- Cup (US): A US cup is ≈236.588 mL. Recipe ‘cups’ vary by country—convert carefully.
About Volume
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).
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.
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.