Convert 1 floz to cup
1 US fluid ounce = 0.125 US cups
How to convert US fluid ounces to US cups
- Formula:
US cups = US fluid ounces × 0.125 - Put in the value: 1 US fluid ounce.
- Result: 0.125 US cups.
US fluid ounces to US cups table
| US fluid ounces | US cups |
|---|---|
| 1 floz | 0.125 cup |
| 2 floz | 0.25 cup |
| 5 floz | 0.625 cup |
| 10 floz | 1.25 cup |
| 20 floz | 2.5 cup |
| 50 floz | 6.25 cup |
| 100 floz | 12.5 cup |
| 500 floz | 62.5 cup |
| 1,000 floz | 125 cup |
Converting the other way: US cups to US fluid ounces
US fluid ounces = US cups × 8. So 0.125 US cups is back to 1 US fluid ounce; one US cup is 8 US fluid ounces. See the US cups to US fluid ounces table.
Quick estimate in your head
For a rough answer, multiply by about 0.1: 1 × 0.1 ≈ 0.1 cup, against the exact 0.125 cup (20.0% out). Good enough to check that a calculated result is sensible.
Common mistakes
The usual slip is using the factor the wrong way round. A US fluid ounce is smaller than a US cup, so the number of US cups must come out smaller than the number of US fluid ounces. If your answer goes the other way, divide instead of multiplying.
About the units
US fluid ounce (floz) and US cup (cup) are both units of volume. One US fluid ounce equals 0.125 US cups, and one US cup equals 8 US fluid ounces. Results on this page are rounded for display; the conversion itself uses the exact definitions.
Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.
1 US fluid ounce in other units
The most readable unit for this amount is US fluid ounces (1).
How this answer was calculated
The result is worked out from the numbers in this page's address when the page is opened, using exact arithmetic wherever possible and rounding only for display. Nothing is copied from a printed table. If you think an answer is wrong, please tell us through the contact page and we will check it.
Reference this page
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Questions
How many US cups are in 1 US fluid ounce?
0.125 US cups.
What is the formula to convert US fluid ounces to US cups?
US cups = US fluid ounces × 0.125
How many US cups are in one US fluid ounce?
One US fluid ounce is 0.125 US cups, so multiply any number of US fluid ounces by 0.125.
Is 1 floz more than 1 cup?
No. 1 US fluid ounce is 0.125 US cups, which is less than 1 US cup.
How do I convert US fluid ounces to US cups in a spreadsheet?
Put the number of US fluid ounces in A1 and type =A1*0.125 in the next cell. Fill the formula down to convert a whole column.