Fluid Ounce to Cup Converter

Convert Fluid Ounces to Cups instantly

fl oz
Result
0cup

Cup

Conversion Formula

Cup = Fluid Ounce × 0.125

Where:

  • fl oz = Fluid Ounce
  • cup = Cup

What is a Fluid Ounce?

The fluid ounce (fl oz) is a unit of cooking in the imperial system of measurement.

What is a Cup?

The cup (cup) is a unit of cooking in the imperial system of measurement.

How to Convert Fluid Ounce to Cup

Convert fluid ounces to cups instantly

Quick Reference:

  • 1 fl oz = 0.125000 cup
  • 1 cup = 8.000000 fl oz

Common Fluid Ounce to Cup Conversions

1 fl oz
= 0.13 cup
5 fl oz
= 0.63 cup
10 fl oz
= 1.25 cup
25 fl oz
= 3.13 cup
50 fl oz
= 6.25 cup
100 fl oz
= 12.50 cup

Conversion Reference Table

Fluid Ounce (fl oz)Cup (cup)
10.125
20.25
30.375
40.5
50.625
101.25
151.875
202.5
253.125
506.25
759.375
10012.5
25031.25
50062.5
1,000125

Quick reference table showing common fluid ounces to cups conversions.

Real-World Cooking Conversions

🍰

Baking and Pastries

Precise measurements are crucial for cakes, cookies, and bread. Converting grams to cups or ounces to milliliters ensures your baked goods turn out perfect every time.

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International Recipes

Following recipes from different countries requires converting between metric and imperial. A French recipe in grams needs conversion to cups for US kitchens.

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Liquid Ingredients

Convert between milliliters, fluid ounces, cups, and tablespoons for liquids like milk, oil, and water. Essential for accurate recipe measurements.

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Dry Ingredients

Flour, sugar, and spices need proper conversion between grams and cups. Weight measurements are more reliable than volume for dry ingredients.

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Recipe Scaling

Double or halve recipes by converting measurements. Make a family-sized batch or scale down to a single serving with accurate conversions.

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Professional Cooking

Chefs use precise measurements for consistency. Converting between units helps maintain recipe standards across different kitchen setups.

Cooking Conversion FAQs

Common Conversion Mistakes

  • Confusing the direction of conversion — always check whether you are converting from Fluid Ounce to Cup or vice versa.
  • Rounding too early in multi-step calculations. Keep full precision until the final result.
  • Using outdated or approximate conversion factors. Our converter uses values traceable to international measurement standards.

Sources & Standards

Conversion factors on this page are based on definitions from the International Bureau of Weights and Measures (BIPM) and the National Institute of Standards and Technology (NIST). All factors are accurate to at least 6 decimal places.

Last updated: November 27, 2025