Fluid Ounces to Cups Converter
Convert US fluid ounces to US cups instantly. Type a value, change either unit, or press swap to go the other way. 1 US fluid ounce = 0.125 US cups.
1 US fluid ounce = 0.125 US cups
How to convert US fluid ounces to US cups
US cups = US fluid ounces × 0.125
To convert US fluid ounces to US cups, multiply the value by 0.125. To go back from US cups to US fluid ounces, divide by the same number (or multiply by 8).
Worked examples
- 4 fl oz: 4 × 0.125 = 0.5 cup
- 6 fl oz: 6 × 0.125 = 0.75 cup
- 8 fl oz: 8 × 0.125 = 1 cup
Divide fluid ounces by 8. An 8 oz glass is one cup and a 12 oz can is one and a half cups.
Fluid Ounces to Cups conversion table
Fluid Ounces to Cups
| fl oz | cup |
|---|---|
| 1 | 0.125 |
| 2 | 0.25 |
| 4 | 0.5 |
| 6 | 0.75 |
| 8 | 1 |
| 12 | 1.5 |
| 16 | 2 |
| 20 | 2.5 |
| 32 | 4 |
| 64 | 8 |
Cups to Fluid Ounces
| cup | fl oz |
|---|---|
| 1 | 8 |
| 2 | 16 |
| 4 | 32 |
| 6 | 48 |
| 8 | 64 |
| 12 | 96 |
| 16 | 128 |
| 20 | 160 |
| 32 | 256 |
| 64 | 512 |
Volume equivalents
See how one US fluid ounce and one US cup compare with every other volume unit on the site.
1 US fluid ounce equals
| Unit | Value |
|---|---|
| milliliters (ml) | 29.57353 |
| liters (L) | 0.02957353 |
| US teaspoons (tsp) | 6 |
| US tablespoons (tbsp) | 2 |
| US cups (cup) | 0.125 |
| US pints (pt) | 0.0625 |
| US quarts (qt) | 0.03125 |
| US gallons (gal) | 0.0078125 |
| imperial gallons (imp gal) | 0.006505267 |
| cubic meters (m³) | 0.0000295735 |
1 US cup equals
| Unit | Value |
|---|---|
| milliliters (ml) | 236.5882 |
| liters (L) | 0.2365882 |
| US fluid ounces (fl oz) | 8 |
| US teaspoons (tsp) | 48 |
| US tablespoons (tbsp) | 16 |
| US pints (pt) | 0.5 |
| US quarts (qt) | 0.25 |
| US gallons (gal) | 0.0625 |
| imperial gallons (imp gal) | 0.05204214 |
| cubic meters (m³) | 0.0002365882 |
When you need to convert US fluid ounces to US cups
Drink cans, bottles and milk cartons list fluid ounces, while recipes call for cups. Knowing the relationship lets you use a packaged liquid directly in a recipe without measuring it again.
About the units
US fluid ounce (fl oz)
The US fluid ounce measures volume, not weight, and is used on American drink and food labels. It is about 29.57 ml. The UK imperial fluid ounce is slightly smaller, at about 28.41 ml.
US cup (cup)
The US cup is the standard American cooking measure at about 236.6 ml (8 US fluid ounces). Metric cups used in Australia and elsewhere are 250 ml, so recipes from different countries can differ by a few percent.
Frequently asked questions
How do I convert US fluid ounces to US cups?
Multiply the number of US fluid ounces by 0.125. For example, 10 US fluid ounces × 0.125 = 1.25 US cups.
How many US cups are in one US fluid ounce?
There are 0.125 US cups in one US fluid ounce.
How many US fluid ounces are in one US cup?
There are 8 US fluid ounces in one US cup.
How many cups are in a 16 oz bottle?
A 16 US fluid ounce bottle holds exactly 2 cups, or one US pint. A 32 oz bottle is a quart, which is 4 cups.
Can I convert other volume units with this tool?
Yes. Use the From and To drop-downs in the converter to choose any volume unit, or press the swap button to reverse the conversion. All calculations use internationally defined conversion factors.