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Fluid Ounces to Cups Converter

Convert fluid ounces to cups and cups to fluid ounces instantly. Bidirectional volume converter with formula and common values.

fl oz

Cups

2

cup

16 fl oz = 2 cup

cup = fl oz ÷ 8

Fluid Ounces to Cups: 1 fl oz equals 0.125 cup. To convert fluid ounces to cups, multiply by 0.125 (cup = fl oz ÷ 8). For example, 10 fl oz = 1.25 cup.

How to Convert Fluid Ounces to Cups

To convert from fluid ounces to cups, multiply the value by 0.125. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Fluid Ounces to Cups: cup = fl oz ÷ 8
  • Cups to Fluid Ounces: fl oz = cup × 8

Fluid Ounces to Cups Conversion Chart

Fluid Ounces (fl oz)Cups (cup)
0.10.0125
0.250.03125
0.50.0625
10.125
20.25
30.375
50.625
101.25
202.5
253.125
506.25
10012.5
25031.25
1000125

Understanding the Units

What is a Fluid Ounce?

The US fluid ounce equals exactly 29.5735295625 milliliters; the imperial fluid ounce is 28.4130625 milliliters.

Common contexts: beverages, cooking (US).

What is a Cup?

The US legal cup equals exactly 240 milliliters; the US customary cup used in recipes is 236.5882365 milliliters.

Common contexts: cooking (US).

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FAQ

How many cups are in a fluid ounce?

One fluid ounce equals 0.125 cups (1/8 of a cup).

How do I convert fluid ounces to cups?

Divide the number of fluid ounces by 8. For example, 12 fl oz ÷ 8 = 1.5 cups.

How many fluid ounces in 2 cups?

Two cups equal 16 fluid ounces.

What is the difference between fluid ounces and weight ounces?

Fluid ounces measure volume while weight ounces (avoirdupois) measure mass. They are not interchangeable unless measuring water at specific conditions.

How many cups are in 1 fluid ounc?

1 fl oz equals 0.125 cup.

How do you convert fluid ounces to cups?

Multiply the fluid ounc value by 0.125. Formula: cup = fl oz ÷ 8.

How many cups are in 5 fluid ounces?

5 fl oz = 0.625 cup.

How do you convert cups back to fluid ounces?

Use the inverse formula: fl oz = cup × 8. For example, 1 cup = 8 fl oz.

What is the difference between Fluid Ounc and Cup?

The US fluid ounce equals exactly 29.5735295625 milliliters; the imperial fluid ounce is 28.4130625 milliliters. The US legal cup equals exactly 240 milliliters; the US customary cup used in recipes is 236.5882365 milliliters.