Ounces to Cups Converter
Convert between fluid ounces (fl oz) and cups with precision. Perfect for cooking, baking, and recipe conversions using US standard measurements.
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Quick Fluid Ounces to Cups Reference
| Fluid Ounces | Cups | Description |
|---|---|---|
| 1 | 0.125 | 1 fluid ounce |
| 2 | 0.250 | 2 fl oz (1/4 cup) |
| 4 | 0.500 | 4 fl oz (1/2 cup) |
| 6 | 0.750 | 6 fl oz (3/4 cup) |
| 8 | 1.000 | 8 fl oz (1 cup) |
| 12 | 1.500 | 12 fl oz (1.5 cups) |
| 16 | 2.000 | 16 fl oz (2 cups) |
| 20 | 2.500 | 20 fl oz (2.5 cups) |
| 24 | 3.000 | 24 fl oz (3 cups) |
| 32 | 4.000 | 32 fl oz (4 cups) |
| 40 | 5.000 | 40 fl oz (5 cups) |
| 64 | 8.000 | 64 fl oz (8 cups) |
Common Cup Fractions to Ounces
| Cups (Fraction) | Cups (Decimal) | Fluid Ounces |
|---|---|---|
| 1/8 | 0.125 | 1.00 |
| 1/4 | 0.250 | 2.00 |
| 1/3 | 0.333 | 2.67 |
| 1/2 | 0.500 | 4.00 |
| 2/3 | 0.667 | 5.33 |
| 3/4 | 0.750 | 6.00 |
| 1 | 1.000 | 8.00 |
| 1 1/4 | 1.250 | 10.00 |
| 1 1/2 | 1.500 | 12.00 |
| 2 | 2.000 | 16.00 |
Understanding Fluid Ounces and Cups
Fluid Ounces (fl oz)
A fluid ounce is a unit of volume measurement used primarily in the United States. It measures liquid volume, not weight. One fluid ounce equals approximately 29.57 milliliters.
US Standard Cup
The US legal cup used in nutrition labeling equals 240 milliliters. The US customary cup used in recipes equals 236.59 milliliters. Our calculator uses the standard 8 fl oz = 1 cup conversion.
Important Distinction
Fluid ounces measure volume (how much space a liquid takes up), while weight ounces measure mass (how heavy something is). This calculator is for fluid ounces only.
Conversion Formulas
Fluid Ounces to Cups
Cups = Fluid Ounces ÷ 8
Cups = fl oz / 8
Cups to Fluid Ounces
Fluid Ounces = Cups × 8
fl oz = Cups * 8
Memory Aids
- 1 cup = 8 fluid ounces (exactly)
- 1/2 cup = 4 fluid ounces
- 1/4 cup = 2 fluid ounces
- 1/8 cup = 1 fluid ounce
- 2 cups = 16 fluid ounces (1 pint)
Different Types of Cups
US Measurements
- • Legal Cup: 240 ml (food labeling)
- • Customary Cup: 236.59 ml (recipes)
- • Coffee Cup: 118 ml (6 fl oz)
- • Our Calculator: 8 fl oz standard
International Cups
- • Metric Cup: 250 ml
- • Imperial Cup: 284.13 ml (UK)
- • Japanese Cup: 200 ml
- • Canadian Cup: 227.3 ml
Conversion Note
- • Always check which cup type your recipe uses
- • US recipes typically use 8 fl oz cups
- • International recipes may vary
- • When in doubt, use volume in ml
Common Applications
Cooking & Baking
- • Recipe conversions
- • Liquid ingredient measurements
- • Scaling recipes up/down
- • Professional cooking
- • Nutritional planning
Beverage Preparation
- • Coffee and tea brewing
- • Cocktail mixing
- • Juice preparation
- • Sports drink mixing
- • Smoothie recipes
Other Uses
- • Food service planning
- • Portion control
- • Medical measurements
- • Lab measurements
- • Educational purposes