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15 Cups to Fluid Ounces

15 cups equals 120 fluid ounces. Use the formula, worked example, and conversion table below to check the math.

15 cup = 120 fl oz
cup × 8 = fl oz
Try: 10 cup to fl oz 14 cup to fl oz 16 cup to fl oz 20 cup to fl oz
15 cup is also
15 cup = 3.55 L 15 cup = 0.9375 gal 15 cup = 3,548.82 mL 15 cup = 7.5 pt 15 cup = 3.75 qt 15 cup = 240 tbsp 15 cup = 720 tsp
cup
120 fl oz

Formula and Step-by-Step

cup × 8 = fl oz
  1. Start with 15 cup
  2. Multiply by 8: 15 × 8 = 120
  3. Result: 15 cup = 120 fl oz

Since 1 cup equals 8 fluid ounces, multiply any cup value by 8 to convert.

Other Cup to Fluid Ounce Values

Cups (cup) Fluid Ounces (fl oz)
1 cup 8 fl oz
2 cup 16 fl oz
5 cup 40 fl oz
10 cup 80 fl oz
15 cup 120 fl oz
20 cup 160 fl oz
25 cup 200 fl oz
50 cup 400 fl oz
75 cup 600 fl oz
100 cup 800 fl oz
250 cup 2,000 fl oz
500 cup 4,000 fl oz
1,000 cup 8,000 fl oz
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Frequently Asked Questions

15 cups equals 120 fluid ounces.
The formula is: cup × 8 = fl oz. See the cup to fl oz formula page for worked examples.
Use the fluid ounces to cups converter. The reverse formula is: fl oz ÷ 8 = cup.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (cup × 8 = fl oz) 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