Convert fluid ounces to us cups quickly and accurately using this free online converter
Used in cooking, beverages, and liquid measurements.
💡 The US uses cups, fluid ounces, and gallons; metric countries use liters and milliliters.
US cup = fl oz × 0.125
Example: 1 fl oz × 0.125 = 0.125 US cup
Use liters for international recipes; cups/gallons for US recipes.
Common uses: cooking, beverages, and liquid containers.
How do I convert fl oz to US cup?
Multiply the value in Fluid Ounces by 0.125. For example: 10 fl oz = 1.25 US cup.
When should I use US Cups instead of Fluid Ounces?
Use liters for international recipes; cups/gallons for US recipes.
Is this converter accurate?
Yes. We use internationally recognized conversion factors, updated to current standards.
| Fluid Ounces (fl oz) | US Cups (US cup) |
|---|---|
| 1 fl oz | 0.125 US cup |
| 2 fl oz | 0.25 US cup |
| 5 fl oz | 0.625 US cup |
| 10 fl oz | 1.25 US cup |
| 20 fl oz | 2.5 US cup |
| 50 fl oz | 6.25 US cup |
| 100 fl oz | 12.5 US cup |
| 500 fl oz | 62.5 US cup |
| 1000 fl oz | 125 US cup |