1 fl oz = 0.125 cup
1 US fluid ounce (fl oz) = 0.125 US customary cup (cup).
If you want to reverse convert, use US customary cup → US fluid ounce. 1 cup = 8 fl oz. You can also explore the full Volume converter page for more cross conversions.
Conversion formula
US fluid ounce to US customary cup formula: value in cup = value in fl oz × 0.125.
US customary cup to US fluid ounce formula: value in fl oz = value in cup × 8.
How to convert US fluid ounce to US customary cup
To convert US fluid ounce to US customary cup, multiply the value in fl oz by 0.125. This gives the result in cup.
For example, 1 fl oz = 0.125 cup and 10 fl oz = 1.25 cup.
What is US fluid ounce?
US fluid ounce (fl oz): The US fluid ounce measures volume. It is not the mass ounce or the imperial fluid ounce. 1 fl oz ≈ 29.5735 mL.
What is US customary cup?
US customary cup (cup): The US customary cup. It is not a local drinking glass or a 250-millilitre metric cup. 1 cup ≈ 236.588 mL.
FAQ
How many us customary cup are in 1 us fluid ounce?
There are 0.125 cup in 1 fl oz.
Why can conversion results differ slightly?
Check the unit definition and rounding. US and imperial measures can differ; rounding intermediate values can also change the final digits.
How do I convert us fluid ounce to us customary cup?
Multiply the value in fl oz by 0.125 to get the value in cup.
US fluid ounce → other Volume units
- 1 us fluid ounce = 2.95735E-5 cubic meter
- 1 us fluid ounce → cubic centimeter = 29.5735 cubic centimeter
- 1 us fluid ounce = 29573.5 cubic millimeter
- 1 us fluid ounce → hectoliter = 0.000295735 hectoliter
- 1 us fluid ounce → liter = 0.0295735 liter
- 1 us fluid ounce → deciliter = 0.295735 deciliter
- 1 us fluid ounce → centiliter = 2.95735 centiliter
- 1 us fluid ounce → milliliter = 29.5735 milliliter
- 1 us fluid ounce → cubic feet = 0.0010443782959929 cubic feet
- 1 us fluid ounce → cubic inch = 1.8046856959856 cubic inch
- 1 us fluid ounce = 3.8680677639485E-5 cubic yard
- 1 us fluid ounce → us liquid pint = 0.0625 us liquid pint
- 1 us fluid ounce → us gallon = 0.0078124958723097 us gallon
- 1 us fluid ounce → us teaspoon = 6.0000202885025 us teaspoon
- 1 us fluid ounce → us tablespoon = 1.9999661865152 us tablespoon
- 1 us fluid ounce → us customary cup = 0.125 us customary cup
- 1 us fluid ounce → us liquid quart = 0.031249966978495 us liquid quart
- 1 us fluid ounce → imperial gallon = 0.0065052605645731 imperial gallon
US fluid ounce → US customary cup Table
The table below shows common values from US fluid ounce to US customary cup and the reverse direction for quick reference.
| fl oz | cup | Rounded |
|---|---|---|
| 1 fl oz | 0.125 cup | 0.1250 |
| 2 fl oz | 0.25 cup | 0.2500 |
| 3 fl oz | 0.375 cup | 0.3750 |
| 4 fl oz | 0.5 cup | 0.5000 |
| 5 fl oz | 0.625 cup | 0.6250 |
| 10 fl oz | 1.25 cup | 1.2500 |
| 12 fl oz | 1.5 cup | 1.5000 |
| 15 fl oz | 1.875 cup | 1.8750 |
| 20 fl oz | 2.5 cup | 2.5000 |
| 25 fl oz | 3.125 cup | 3.1250 |
| 30 fl oz | 3.75 cup | 3.7500 |
| 40 fl oz | 5 cup | 5.0000 |
| 50 fl oz | 6.25 cup | 6.2500 |
| 75 fl oz | 9.375 cup | 9.3750 |
| 100 fl oz | 12.5 cup | 12.5000 |
| 200 fl oz | 25 cup | 25.0000 |
| 250 fl oz | 31.25 cup | 31.2500 |
| 500 fl oz | 62.5 cup | 62.5000 |
| 750 fl oz | 93.75 cup | 93.7500 |
| 1000 fl oz | 125 cup | 125.0000 |
| 2500 fl oz | 312.5 cup | 312.5000 |
| 5000 fl oz | 625 cup | 625.0000 |
| 10000 fl oz | 1250 cup | 1250.0000 |
US customary cup → US fluid ounce Table
| cup | fl oz | Rounded |
|---|---|---|
| 1 cup | 8 fl oz | 8.0000 |
| 2 cup | 16 fl oz | 16.0000 |
| 3 cup | 24 fl oz | 24.0000 |
| 4 cup | 32 fl oz | 32.0000 |
| 5 cup | 40 fl oz | 40.0000 |
| 10 cup | 80 fl oz | 80.0000 |
| 12 cup | 96 fl oz | 96.0000 |
| 15 cup | 120 fl oz | 120.0000 |
| 20 cup | 160 fl oz | 160.0000 |
| 25 cup | 200 fl oz | 200.0000 |
| 30 cup | 240 fl oz | 240.0000 |
| 40 cup | 320 fl oz | 320.0000 |
| 50 cup | 400 fl oz | 400.0000 |
| 75 cup | 600 fl oz | 600.0000 |
| 100 cup | 800 fl oz | 800.0000 |
| 200 cup | 1600 fl oz | 1600.0000 |
| 250 cup | 2000 fl oz | 2000.0000 |
| 500 cup | 4000 fl oz | 4000.0000 |
| 750 cup | 6000 fl oz | 6000.0000 |
| 1000 cup | 8000 fl oz | 8000.0000 |
| 2500 cup | 20000 fl oz | 20000.0000 |
| 5000 cup | 40000 fl oz | 40000.0000 |
| 10000 cup | 80000 fl oz | 80000.0000 |
US customary cup → US fluid ounce
The reverse value is 1 cup = 8 fl oz.