Ounces ↔ Cups Converter
Convert between ounces and cups instantly
📚 Ounces ↔ Cups Conversion Details
Ounces to Cups Formula
To convert ounces to cups, divide the ounces by 8 (US Customary).
Cups to Ounces Formula
To convert cups to ounces, multiply the cups by 8 (US Customary).
Measurement Types
- US Customary: 1 cup = 8 fl oz
- UK Imperial: 1 cup = 10 fl oz
- Metric Cups: 1 cup = 250 ml
Common Uses
- Cooking and baking recipes
- Liquid measurements
- Food portion control
- Mixology and bartending
📏 How This Converter Works
This is a bidirectional converter that works in real-time:
- Ounces → Cups: When you type in the ounces field, the cups field automatically updates
- Cups → Ounces: When you type in the cups field, the ounces field automatically updates
- No swapping needed: Both conversions happen simultaneously
- Real-time: Updates happen as you type, no button clicks required
cups = ounces ÷ conversion_factor
ounces = cups × conversion_factor
// US Customary (default):
conversion_factor = 8
// Example: 16 ounces
cups = 16 ÷ 8 = 2 cups
📊 Conversion Table (US Customary)
| Ounces | Cups | Fraction |
|---|---|---|
| 1 oz | 0.125 cup | ⅛ cup |
| 2 oz | 0.25 cup | ¼ cup |
| 4 oz | 0.5 cup | ½ cup |
| 6 oz | 0.75 cup | ¾ cup |
| 8 oz | 1 cup | 1 cup |
| 16 oz | 2 cups | 2 cups |
🔄 Different Measurement Systems
US Customary
1 cup = 8 fluid ounces
Most common in US recipes
236.59 ml per cup
UK Imperial
1 cup = 10 fluid ounces
Used in UK and Commonwealth
284.13 ml per cup
Metric Cups
1 cup = 250 ml
Used in metric recipes
8.45 oz per cup
❓ Frequently Asked Questions
A: In the US Customary system, there are 8 fluid ounces in 1 cup. In the UK Imperial system, there are 10 fluid ounces in 1 cup.
A: This converter uses fluid ounces for liquid volume measurements. For dry ingredients, weight ounces are different and require a density conversion.
A: No! The conversion happens automatically as you type in either field.
A: This converter provides exact calculations up to 4 decimal places for precise measurements.