Cups to Ounces
The cups to ounces converter turns cups into fluid ounces, and works the same way in reverse. Both cups and fluid ounces measure volume, so the ratio between them is fixed and no ingredient density is involved.
This converts cups to fluid ounces (a volume): 1 cup = 8 fl oz. For an ingredient weighed in ounces, use the cups to grams converter below (1 oz = 28.35 g).
Cups to Ounces conversion table
| Cups (cups) | Fluid ounces (fl oz) |
|---|---|
| 0.25 cups | 2 fl oz |
| 0.5 cups | 4 fl oz |
| 0.75 cups | 6 fl oz |
| 1 cups | 8 fl oz |
| 2 cups | 16 fl oz |
| 3 cups | 24 fl oz |
| 4 cups | 32 fl oz |
Frequently asked questions
How many fluid ounces are in 1 cup?
There are 8 fl oz in 1 cup. The table on this page lists the everyday amounts, and the calculator converts any value the moment you type it. Both cups and fluid ounces measure volume, so the ratio is fixed and holds whatever you are measuring.
How do you convert cups to fluid ounces?
To convert cups to fluid ounces, enter the amount in the cups box and the fluid ounces result appears instantly; type in either box to convert both ways. The conversion table above covers 0.25 to 4 cups if you would rather read a value off than type one. Nothing is rounded until the result is displayed, so part-amounts convert as exactly as whole ones.
Is this cups to fluid ounces converter free?
Yes — this cups to fluid ounces converter is completely free, with no sign-up and no limit on how many conversions you run. Every calculation runs locally in your browser, so nothing you type is uploaded. For every unit and ingredient in one place, use the full cooking and baking converter.
Are the cups and fluid ounces here US measures?
Yes — the cups and fluid ounces on this page are US customary measures, which in millilitres means 1 cup is 236.59 ml and 1 fl oz is 29.57 ml. A metric cup, used in Australia and in many British recipe books, holds 250 ml rather than the US 236.59 ml, and an Australian tablespoon holds 20 ml rather than 14.79 ml. If your recipe was written to those, convert through millilitres rather than assuming the cups and spoons match.
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