oz to Cups Converter

Convert fluid ounces to cups and cups to fluid ounces for cooking and baking

Cooking Volume Conversion

fl oz

Standard US fluid ounces

cups

Standard US legal cups (240 ml)

Conversion Results

0.00 fl oz
Fluid Ounces
0.000 cups
Cups

Conversion formula: cups = fl oz ÷ 8

Calculation: 0 fl oz ÷ 8 = 0.000 cups

Standard: 1 cup = 8 fl oz | 1 fl oz = 0.125 cups

🍳 Cooking Tips

• Use measuring cups for dry ingredients and liquid measuring cups for fluids

• Level measurements for accuracy - don't pack or heap ingredients

• For sticky liquids (honey, molasses), lightly oil the measuring cup first

• Room temperature ingredients mix more easily than cold ones

Common Cooking Conversions

Fluid Ounces to Cups

1 fl oz = 1 ÷ 8 = 1/8 cup

2 fl oz = 2 ÷ 8 = 1/4 cup

4 fl oz = 4 ÷ 8 = 1/2 cup

6 fl oz = 6 ÷ 8 = 3/4 cup

8 fl oz = 8 ÷ 8 = 1 cup

Cups to Fluid Ounces

1/4 cup = 1/4 × 8 = 2 fl oz

1/2 cup = 1/2 × 8 = 4 fl oz

1 cup = 1 × 8 = 8 fl oz

2 cups = 2 × 8 = 16 fl oz

4 cups = 4 × 8 = 32 fl oz

Quick Reference

US Standard
1 cup = 8 fl oz
1 fl oz = 0.125 cups
1 cup = 240 ml (legal)
Common Fractions
1/8 cup = 1 fl oz
1/4 cup = 2 fl oz
1/2 cup = 4 fl oz
3/4 cup = 6 fl oz

Conversion Table

Fluid OuncesCups
1 fl oz1/8 cup
2 fl oz1/4 cup
4 fl oz1/2 cup
6 fl oz3/4 cup
8 fl oz1 cup
16 fl oz2 cups
32 fl oz4 cups

Recipe Helper

🥛

Liquids

Milk, water, oil, juice

🍯

Sticky Liquids

Honey, maple syrup, molasses

🧄

Extracts

Vanilla, almond, lemon

🍷

Cooking Wine

Wine, brandy, rum

Understanding Fluid Ounces and Cups

What is a Fluid Ounce?

A fluid ounce (fl oz) is a unit of volume measurement commonly used in cooking and baking in the United States. It measures liquid volume, not weight, and is approximately equal to 29.57 milliliters.

Types of Cups

  • US Legal Cup: 240 ml (used in nutrition labels)
    Most common in recipes
  • US Customary Cup: 236.588 ml
    Traditional US measurement
  • Metric Cup: 250 ml
    Used in some international recipes

Conversion Formulas

1 cup = 8 fl oz

1 fl oz = 0.125 cups

Fluid Ounces → Cups

Divide fl oz by 8
cups = fl oz ÷ 8

Cups → Fluid Ounces

Multiply cups by 8
fl oz = cups × 8

🍴 Cooking & Baking Tips

  • • Use clear glass measuring cups for liquids and metal/plastic for dry ingredients
  • • Measure liquids at eye level for accuracy
  • • For small amounts (under 1/4 cup), measuring spoons are more accurate
  • • Different cup types can affect recipe outcomes - stick to one system
  • • When scaling recipes, maintain the same ratios between ingredients

📏 Measurement Hierarchy

Liquid Volume (US):
  • • 1 gallon = 16 cups = 128 fl oz
  • • 1 quart = 4 cups = 32 fl oz
  • • 1 pint = 2 cups = 16 fl oz
  • • 1 cup = 8 fl oz
Small Measurements:
  • • 1 fl oz = 2 tablespoons
  • • 1 tablespoon = 3 teaspoons
  • • 1 fl oz = 6 teaspoons
  • • 1/2 fl oz = 1 tablespoon