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gallon (gal) → cup (cup)

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Use our free online converter to convert between units instantly. Enter any value in the field above to get accurate results. No signup or download required—all conversions run in your browser. Our calculator uses standard conversion factors for reliability.

0
gal=cup
0.01=0.16
0.1=1.600001
1=16.000008
2=32.000017
3=48.000025
5=80.000042
10=160.000085
20=320.000169
50=800.000423
100=1,600.0008
1000=16,000.0085

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Brief explanation: gallon to cup

Liter is the base volume unit in the metric system. US gallon = 3.78 L. Cup = 236 ml. Tablespoon = 15 ml, teaspoon = 5 ml. Volume measures how much space a substance occupies. The metric system (L, mL) is used worldwide. US customary units (gal, cup, tbsp, tsp) are common in American recipes. When converting, use the exact factors for accuracy—especially in cooking and chemistry.

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Common conversion examples: gallon to cup

Reference values for quick comparison. Use the converter above for any amount.

  • 1 gallon=16 cup
  • 5 gallon=80 cup
  • 10 gallon=160.0001 cup

About the Units

gallon (gal)

Definition: A gallon (gal) is a unit of volume. The US gallon equals 3.785 liters; the imperial (UK) gallon equals 4.546 liters. It is used for fuel, milk, and other liquids in the US and UK.
History: The gallon has medieval English origins. The US and imperial gallons diverged. The US gallon is based on the wine gallon; the imperial gallon was defined in 1824 for the British Empire.
Current use: Gallons are used for fuel efficiency (mpg), milk, and paint in the US. The UK uses imperial gallons for fuel. Most countries use liters for liquid volumes.

cup (cup)

Definition: A cup is a unit of volume used in cooking. In the US, one cup equals 236.588 mL (approximately 8 fluid ounces). Metric cups are 250 mL. Recipes commonly specify ingredients in cups.
History: The cup as a cooking measure became standard in American recipes. It provided a convenient middle ground between tablespoons and quarts. Different countries define cups slightly differently.
Current use: Cups are used in US and some Commonwealth recipes. Baking and cooking measurements often use cups. Many countries use grams or milliliters for recipe precision.

Sources

Conversion factors and unit definitions follow international standards. For authoritative references, see: