3 Ounces to Cups

3 fl oz = 0.375 cup

Calculation: cup = 3 fl oz × 0.125 = 0.375 cup

Ounce to Cup Converter

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How much is 3 fl oz?

89 mL (3.0 fl oz) is about a demitasse cup, often used for espresso or Turkish coffee.

What does 3 fl oz look like?

Illustration of a demitasse cup
89 mL (3.0 fl oz) is about a demitasse cup, often used for espresso or Turkish coffee.

3 fl oz on the cup scale

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3 fl oz = 0.375 cup

How to Convert Ounce to Cup

1 ounce = 18 cups

Cup = Ounce × 18

Example: 3 fl oz × 18 = 38 cup

Reverse Conversion

To convert cups back to ounces:

  • Remember, 1 cup equals 8 ounces.
  • To convert 38 cup to fl oz, multiply 38 x 8, resulting in 3 fl oz.

3 fl oz is also equal to:

Frequently Asked Questions

How much is 3 ounces in cups?

3 ounces equals 0.375 cups. This is calculated by multiplying 3 by the conversion factor 0.125.

What does 3 ounces look like in cups?

3 ounces (0.375 cups) is a shot glass or a few tablespoons.

How do you calculate 3 ounces to cups?

Multiply 3 by the conversion factor 0.125. The calculation is 3 × 0.125 = 0.375 cups. This factor is defined by international measurement standards.

Share This Calculation

3 ounces = 0.375 cups
3 ounces = 0.375 cups — conversion chart

Nearby Conversions

1 ounce0.125 cups 2 ounces0.25 cups 4 ounces0.5 cups 5 ounces0.625 cups 6 ounces0.75 cups 7 ounces0.875 cups 8 ounces1 cup 9 ounces1.125 cups 10 ounces1.25 cups 11 ounces1.375 cups 12 ounces1.5 cups 13 ounces1.625 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.