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100 Cups to Gallons

100 cups is 6.25 gallons. See the step-by-step breakdown and reference table below, or try a different value in the calculator.

100 cup = 6.25 gal
cup ÷ 16 = gal
Try: 95 cup to gal 99 cup to gal 101 cup to gal 105 cup to gal
100 cup is also
100 cup = 23.66 L 100 cup = 23,658.82 mL 100 cup = 800 fl oz 100 cup = 50 pt 100 cup = 25 qt 100 cup = 1,600 tbsp 100 cup = 4,800 tsp
cup
6.25 gal

How to Convert Cups to Gallons

cup ÷ 16 = gal
  1. Start with 100 cup
  2. Divide by 16: 100 ÷ 16 = 6.25
  3. Result: 100 cup = 6.25 gal

The same formula works for any value. Multiply by 0.0625 to go from cups to gallons.

Common Cup to Gallon Conversions

Cups (cup) Gallons (gal)
1 cup 0.0625 gal
2 cup 0.125 gal
5 cup 0.3125 gal
10 cup 0.625 gal
15 cup 0.9375 gal
20 cup 1.25 gal
25 cup 1.56 gal
50 cup 3.13 gal
75 cup 4.69 gal
100 cup 6.25 gal
250 cup 15.63 gal
500 cup 31.25 gal
1,000 cup 62.5 gal
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Frequently Asked Questions

100 cups equals 6.25 gallons.
The formula is: cup ÷ 16 = gal. See the cup to gal formula page for worked examples.
Use the gallons to cups converter. The reverse formula is: gal × 16 = cup.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (cup ÷ 16 = gal) is based on internationally defined standards. Displayed results are rounded for readability, while the calculator uses the full-precision factor.
person Written by Sean Day verified Reviewed by UnitCompare update Last updated Mar 28, 2026