# How Many Gallons in 21 Cups?

21 Cups to gallons converter. How many gallons in 21 cups? We assume you are converting between US cups and US fluid gallons.

21 Cups equal to 1.3125 gallons or there are 1.3125 gallons in 21 cups.

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## How to convert 21 cups to gallons?

The conversion factor from cup to gallon is 0.0625. To convert any value of cup to gallon, multiply the cup value by the conversion factor.

To convert 21 cups to gallons, multiply 21 by 0.0625 (or divide by 16), that makes 21 cups equal to 1.3125 gallons.

21 cups to gallons formula

gallon = cup value * 0.0625

gallon = 21 * 0.0625

gallon = 1.3125

Common conversions from 21.x cups to gallons:
(rounded to 3 decimals)

• 21 cups = 1.312 gallons
• 21.1 cups = 1.319 gallons
• 21.2 cups = 1.325 gallons
• 21.3 cups = 1.331 gallons
• 21.4 cups = 1.338 gallons
• 21.5 cups = 1.344 gallons
• 21.6 cups = 1.35 gallons
• 21.7 cups = 1.356 gallons
• 21.8 cups = 1.362 gallons
• 21.9 cups = 1.369 gallons

What is a Gallon?

Gallon is an imperial and United States Customary measurement systems volume unit. 1 US fluid gallon = 16 US cups. The symbol is "gal".

What is a Cup?

Cup is a Metric and United States Customary measurement systems volume unit. 1 Cup = 1/16 Gallon. The symbol is "c".

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Click "Create Table". Enter a "Start" value (5, 100 etc). Select an "Increment" value (0.01, 5 etc) and select "Accuracy" to round the result.