Cups to oz Converter: US Cups to Fluid Ounces
Convert US cups to fluid ounces (fl oz) with exact multiplication by 8.
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How to Use the Cups to oz Converter: US Cups to Fluid Ounces
- 1Enter the number of cups.
- 2View calculated fluid ounces instantly.
- 3Review common culinary fraction equivalents.
- 4Copy the result for recipes.
Formula & How It Works
Cups to Fluid Ounces Formula
Multiply cups by 8.
Worked Examples
Half Cup Milk
Input: 0.5 cups
Explanation: 0.5 * 8 = 4 fl oz.
Two Cups Broth
Input: 2 cups
Explanation: 2 * 8 = 16 fl oz (1 US pint).
One and Half Cups
Input: 1.5 cups
Explanation: 1.5 * 8 = 12 fl oz.
Frequently Asked Questions
How many ounces are in 1 cup?▼
There are exactly 8 US fluid ounces in 1 US customary cup.
Is 1 cup always 8 oz?▼
In volume, yes. In weight, it depends on ingredient density (e.g., 1 cup flour is ~4.5 oz weight).
How do I convert 3 cups to ounces?▼
3 * 8 = 24 fluid ounces.
What is 1/3 cup in ounces?▼
1/3 cup equals approximately 2.67 fluid ounces (2 and 2/3 fl oz).
What is the formula for cups to oz?▼
Fluid Ounces = Cups * 8.
Is this tool free?▼
Yes, our converters are completely free and private.
Quick Reference & Conversion Table
| Cups | Fluid Ounces (fl oz) | Metric Equivalent (approx) |
|---|---|---|
| 1/4 cup | 2 fl oz | 59.1 ml |
| 1/2 cup | 4 fl oz | 118.3 ml |
| 3/4 cup | 6 fl oz | 177.4 ml |
| 1 cup | 8 fl oz | 236.6 ml |
| 2 cups | 16 fl oz | 473.2 ml |
⚠️ Common Pitfalls to Avoid
- •Confusing dry ounces (weight) with fluid ounces (volume).
- •Mixing up US legal cups (240 ml) with US customary cups (236.588 ml).
💡 Practical Real-World Uses
- •Baking and scaling culinary recipes.
- •Beverage and cocktail ingredient portioning.
- •Tracking daily water and hydration intake.
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