Convert Fluid Ounces (US) to Cups (US)
fl oz to cup · volume conversion
What are fluid ounces (us) and cups (us)?
A US fluid ounce is about 29.57 mL, used for liquids and beverages. A US cup is 8 fluid ounces (about 237 mL), the standard recipe measure in the US. For scale: a standard water bottle holds about 500 mL (17 fl oz), and a US gallon is 3.785 L.
How to convert fluid ounces (us) to cups (us)
1 fl oz = 0.125 cup. To convert, multiply the number of fluid ounces (us) by 0.125. For example, 5 fl oz = 0.625 cup, and 20 fl oz = 2.5 cup. To go the other way, multiply cups (us) by 8 (since 1 cup = 8 fl oz).
Fluid Ounces (US) to Cups (US) conversion table
| Fluid Ounces (US) (fl oz) | Cups (US) (cup) |
|---|---|
| 1 | 0.125 |
| 2 | 0.25 |
| 5 | 0.625 |
| 10 | 1.25 |
| 20 | 2.5 |
| 50 | 6.25 |
| 100 | 12.5 |
FAQ
What is 1 fl oz in cup?
1 fl oz = 0.125 cup. To convert any amount, multiply the number of fluid ounces (us) by 0.125.
How do I convert cups (us) back to fluid ounces (us)?
Go the other way: 1 cup = 8 fl oz, so multiply cups (us) by 8 to get fluid ounces (us).
Is a fluid ounces (us) bigger than a cups (us)?
No — 1 fl oz is the smaller unit, equal to 0.125 cup (it takes 8 fl oz to make one cup).
Are these volume conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.