Conversion

US Fluid Ounces to US Cups Converter

1 US fluid ounce = 0.125 cup. Enter any value to convert US fluid ounces (fl oz) to US cups (cup), or use the table below for common values.

Results

1 fl oz =0.125 cupUS fluid ounces → US cups

1 fl oz0.125 cup

1 cup8 fl oz

Formula: cup = fl oz × 0.125

1 fl oz in other units

1 fl oz in other units
Unit	Value
milliliters (mL)	29.57352956
liters (L)	0.02957352956
cubic meters (m³)	0.00002957352956
US teaspoons (tsp)	6
US tablespoons (tbsp)	2
US cups (cup)	0.125
US pints (pt)	0.0625
US quarts (qt)	0.03125
US gallons (gal)	0.0078125

Formula

cup = fl oz × 0.125

Example: 10 fl oz = 1.25 cup. To convert the other way, use fl oz = cup × 8.

Quick mental estimate: multiply by about 0.13.

US Fluid Ounces to US Cups conversion table

US Fluid Ounces (fl oz)	US Cups (cup)
1 fl oz	0.125 cup
2 fl oz	0.25 cup
3 fl oz	0.375 cup
4 fl oz	0.5 cup
5 fl oz	0.625 cup
6 fl oz	0.75 cup
7 fl oz	0.875 cup
8 fl oz	1 cup
9 fl oz	1.125 cup
10 fl oz	1.25 cup
15 fl oz	1.875 cup
20 fl oz	2.5 cup
25 fl oz	3.125 cup
30 fl oz	3.75 cup
40 fl oz	5 cup
50 fl oz	6.25 cup
75 fl oz	9.375 cup
100 fl oz	12.5 cup
250 fl oz	31.25 cup
500 fl oz	62.5 cup
1,000 fl oz	125 cup

About US fluid ounces and US cups

The US fluid ounce is 1/128 of a US gallon, about 29.57 mL. It is used on drink and cosmetics labels in the US.

The US customary cup is 8 US fluid ounces, about 236.6 mL. Nutrition labels use a rounded "legal cup" of 240 mL.

Other Volume conversions

US Cups → US Fluid OuncesReverse conversion Milliliters → US CupsmL → cup Liters → US CupsL → cup Cubic Meters → US Cupsm³ → cup US Teaspoons → US Cupstsp → cup US Tablespoons → US Cupstbsp → cup US Fluid Ounces → Millilitersfl oz → mL US Fluid Ounces → Litersfl oz → L US Fluid Ounces → Cubic Metersfl oz → m³ US Fluid Ounces → US Teaspoonsfl oz → tsp US Fluid Ounces → US Tablespoonsfl oz → tbsp US Fluid Ounces → US Pintsfl oz → pt US Fluid Ounces → US Quartsfl oz → qt US Fluid Ounces → US Gallonsfl oz → gal US Pints → US Cupspt → cup US Quarts → US Cupsqt → cup US Gallons → US Cupsgal → cup

Frequently asked questions

How do I convert US fluid ounces to US cups?

Use the formula cup = fl oz × 0.125. For example, 10 fl oz = 1.25 cup.

What is 1 US fluid ounce in US cups?

1 fl oz = 0.125 cup.

How do I convert US cups back to US fluid ounces?

Use fl oz = cup × 8. 1 cup = 8 fl oz.