Convert US fluid ounces to US cups
1 fl oz = 0.125 cup. Change the amount below, or read the formula and the reference table further down.
1 US fluid ounce equals
US cups
1 fl oz = 0.125 cup
The formula
US fluid ounces and US cups both measure volume from the same zero, so a single multiplier does the job.
cup = fl oz × 0.125
Going the other way? Convert US cups to US fluid ounces.
US fluid ounces to US cups table
Common values, rounded for reading.
| US fluid ounces (fl oz) | US cups (cup) |
|---|---|
| 1 | 0.125 |
| 2 | 0.25 |
| 3 | 0.375 |
| 4 | 0.5 |
| 5 | 0.625 |
| 6 | 0.75 |
| 7 | 0.875 |
| 8 | 1 |
| 9 | 1.125 |
| 10 | 1.25 |
| 15 | 1.875 |
| 20 | 2.5 |
| 25 | 3.125 |
| 30 | 3.75 |
| 40 | 5 |
| 50 | 6.25 |
| 75 | 9.375 |
| 100 | 12.5 |
| 250 | 31.25 |
| 500 | 62.5 |
| 1,000 | 125 |
Questions people ask
- How many US cups are in a US fluid ounce?
- One US fluid ounce equals 0.125 US cups.
- How do I convert US fluid ounces to US cups by hand?
- Multiply the number of US fluid ounces by 0.125. For a rough check, 0.125 is close enough for most everyday use.
- What is 1 US fluid ounce in US cups?
- 1 US fluid ounce is 0.125 US cups.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.