Ounces to Cups Converter
Convert between fluid ounces and cups for cooking and baking. This calculator handles US fluid ounces and provides conversions to tablespoons, teaspoons, and milliliters.
Enter an amount to see conversions.
Quick Reference Chart
| Fluid Ounces | Cups | Tablespoons | Milliliters |
|---|---|---|---|
| 1 fl oz | 0.125 cups | 2 tbsp | 30 mL |
| 2 fl oz | 0.25 cups | 4 tbsp | 59 mL |
| 4 fl oz | 0.5 cups | 8 tbsp | 118 mL |
| 6 fl oz | 0.75 cups | 12 tbsp | 177 mL |
| 8 fl oz | 1 cup | 16 tbsp | 237 mL |
| 12 fl oz | 1.5 cups | 24 tbsp | 355 mL |
| 16 fl oz | 2 cups | 32 tbsp | 473 mL |
| 32 fl oz | 4 cups | 64 tbsp | 946 mL |
How It Works
In the US measurement system, 1 cup equals 8 fluid ounces. This is a volume measurement, not a weight measurement. Fluid ounces measure how much space a liquid takes up, while weight ounces measure mass.
The conversions are: 1 cup = 8 fl oz = 16 tablespoons = 48 teaspoons = 236.6 mL. Note that UK cups are slightly different (1 UK cup = 10 UK fl oz).
Frequently Asked Questions
What's the difference between fluid ounces and weight ounces?
Fluid ounces (fl oz) measure volume—how much space something takes up. Weight ounces (oz) measure mass. A fluid ounce of water weighs about 1.04 weight ounces, but denser liquids like honey weigh more per fluid ounce.
Are UK fluid ounces the same as US fluid ounces?
No. US fluid ounce is 29.57 mL, while UK fluid ounce is 28.41 mL. This calculator uses US measurements. For UK conversions, 1 UK cup = 10 UK fl oz = 284 mL.
How many ounces in a standard measuring cup?
A standard US measuring cup holds 8 fluid ounces. Common cup fractions: 1/4 cup = 2 fl oz, 1/3 cup = 2.67 fl oz, 1/2 cup = 4 fl oz, 2/3 cup = 5.33 fl oz, 3/4 cup = 6 fl oz.