15 Ounces to Cups

15 fl oz = 1.875 cup

Calculation: cup = 15 fl oz × 0.125 = 1.875 cup

Ounce to Cup Converter

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How much is 15 fl oz?

444 mL (15 fl oz) is about a standard water bottle (500 mL / 16.9 fl oz).

What does 15 fl oz look like?

Illustration of a water bottle
444 mL (15 fl oz) is about a standard water bottle (500 mL / 16.9 fl oz).

15 fl oz on the cup scale

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15 fl oz = 1.875 cup

Did you know? Water bottle (standard) is 500 mL.

The standard single-serve water bottle is 500 mL (16.9 fl oz), half a liter.

How to Convert Ounce to Cup

1 ounce = 18 cups

Cup = Ounce × 18

Example: 15 fl oz × 18 = 1 78 cup

Reverse Conversion

To convert cups back to ounces:

  • Remember, 1 cup equals 8 ounces.
  • To convert 1 78 cup to fl oz, multiply 1 78 x 8, resulting in 15 fl oz.

15 fl oz is also equal to:

Frequently Asked Questions

How much is 15 ounces in cups?

15 ounces equals 1.875 cups. This is calculated by multiplying 15 by the conversion factor 0.125.

What does 15 ounces look like in cups?

15 ounces (1.875 cups) is between a cup and a pint — a standard drinking glass.

How do you calculate 15 ounces to cups?

Multiply 15 by the conversion factor 0.125. The calculation is 15 × 0.125 = 1.875 cups. This factor is defined by international measurement standards.

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15 ounces = 1.875 cups
15 ounces = 1.875 cups — conversion chart

Nearby Conversions

1 ounce0.125 cups 3 ounces0.375 cups 5 ounces0.625 cups 7 ounces0.875 cups 9 ounces1.125 cups 11 ounces1.375 cups 13 ounces1.625 cups 17 ounces2.125 cups 19 ounces2.375 cups 21 ounces2.625 cups 23 ounces2.875 cups 25 ounces3.125 cups 27 ounces3.375 cups 29 ounces3.625 cups 31 ounces3.875 cups 33 ounces4.125 cups 35 ounces4.375 cups

For general conversions between ounces and cups, see the ounces to cups converter.

Also convert Ounces to:

Conversion factors verified against NIST, BIPM, ISO 80000-3 1 US gallon = 3.785411784 L (exact, US customary). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.