How many cups is 8 oz?
There is 1 cup in 8 fluid ounces.
The number people check when a recipe or a drink label gives ounces — 8 fl oz is exactly 1 US cup, which is why a standard cup measure and a standard glass agree. This holds only for fluid ounces; 8 ounces of flour by weight is nowhere near a cup.
This converts fluid ounces (a volume): 8 fl oz = 1 cup. Weight ounces are different — to convert an ingredient weighed in ounces, use the grams to cups converter below (1 oz = 28.35 g).
How many cups is 8 oz? conversion table
| Fluid ounces (fl oz) | Cups (cups) |
|---|---|
| 1 fl oz | 0.125 cups |
| 2 fl oz | 0.25 cups |
| 4 fl oz | 0.5 cups |
| 6 fl oz | 0.75 cups |
| 8 fl oz | 1 cups |
| 12 fl oz | 1.5 cups |
| 16 fl oz | 2 cups |
Frequently asked questions
How many cups are in 1 fl oz?
There are 0.125 cups in 1 fl oz. The table on this page lists the everyday amounts, and the calculator converts any value the moment you type it. Both fluid ounces and cups measure volume, so the ratio is fixed and holds whatever you are measuring.
How do you convert fluid ounces to cups?
To convert fluid ounces to cups, enter the amount in the fluid ounces box and the cups result appears instantly; type in either box to convert both ways. The conversion table above covers 1 to 16 fl oz 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 fluid ounces to cups converter free?
Yes — this fluid ounces to cups 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 fluid ounces and cups here US measures?
Yes — the fluid ounces and cups on this page are US customary measures, which in millilitres means 1 fl oz is 29.57 ml and 1 cup is 236.59 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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