Ounces (oz) to Cups
- Ounces to Cups
- Quarts to Cups
- Pints to Cups
Convert fluid ounces to cups for liquids such as milk and water, or dry ounces to cups for solids such as flour, sugar and butter.
Disclaimer: Whilst every effort has been made in building our calculator tools, we are not to be held liable for any damages or monetary losses arising out of or in connection with their use. Full disclaimer.
How many fluid ounces are in a cup?
One US cup holds 8 fluid ounces – the standard conversion for liquids in cooking. Note that we also discuss dry ounces (the unit of weight) further down this page if you're converting ingredients like flour or sugar. Let's begin with a quick conversion chart of 1-8 fluid ounces to cups (and tablespoons).
| Ounces (fluid) | Cups (US) | Tablespoons |
|---|---|---|
| 1 fl oz | 1/8 cup | 2 tbsp |
| 2 fl oz | 1/4 cup | 4 tbsp |
| 3 fl oz | 3/8 cup | 6 tbsp |
| 4 fl oz | 1/2 cup | 8 tbsp |
| 5 fl oz | 5/8 cup | 10 tbsp |
| 6 fl oz | 3/4 cup | 12 tbsp |
| 7 fl oz | 7/8 cup | 14 tbsp |
| 8 fl oz | 1 cup | 16 tbsp |
If you need the opposite conversion – cups to fluid ounces – here's a chart for that.
| Cups (US) | Ounces (fluid) | Tablespoons |
|---|---|---|
| 1 cup | 8 fl oz | 16 tbsp |
| 3/4 cup | 6 fl oz | 12 tbsp |
| 2/3 cup | 5.3 fl oz | 10.6 tbsp |
| 1/2 cup | 4 fl oz | 8 tbsp |
| 1/3 cup | 2.7 fl oz | 5.3 tbsp |
| 1/4 cup | 2 fl oz | 4 tbsp |
Fluid ounces and cups infographic
Our infographic below shows measurements for US fluid ounces, cups, tablespoons, teaspoons and milliliters. Note that all figures are rounded to the nearest whole number.
We've covered fluid ounces, but what about dry ounces for solid ingredients?
How many dry ounces are in a cup?
One cup of flour measures about 4 3/8 oz, a cup of sugar about 7 1/8, and a cup of butter about 8 oz.
- 1 cup (US) of all-purpose flour converts to 4 3/8 oz (4.4 oz).
- 1 cup (US) of granulated sugar converts to 7 1/8 oz (7.1 oz).
- 1 cup (US) of un-sifted powdered sugar converts to 4 1/4 oz (4.2 oz).
- 1 cup (US) of chocolate chips converts to 6 oz.
When converting between dry ounces (oz) and cups, remember that the cup is a unit of volume and the dry ounce (oz) is a unit of weight. This means the conversion depends on the density of the ingredient. As an example, a cup of flour weighs 4.4 ounces, but a cup of butter weighs 8 ounces. Below is a list of conversions between cups and dry ounces for common ingredients. Use our converter at the top of the page for many more ingredient options.
| Ingredient | 1 Cup (US) | 1/2 Cup (US) |
|---|---|---|
| Flour (all-purpose) | 4 3/8 oz (4.4 oz) | 2 3/16 oz (2.2 oz) |
| Flour (bread) | 4 1/2 oz (4.5 oz) | 2 1/4 oz (2.2 oz) |
| Butter | 8 oz | 4 oz |
| Oats | 3 3/5 oz (3.6 oz) | 1 4/5 oz (1.8 oz) |
| Sugar (granulated) | 7 1/8 oz (7.1 oz) | 3 9/16 oz (3.6 oz) |
| Sugar (powdered) | 4 1/4 oz (4.2 oz) | 2 1/8 oz (2.1 oz) |
Other related converters
You may find these other cooking converters useful.
Calculator created by Alastair Hazell.References
- Food and Agricultural Organisation of the United Nations. Density Database Version 2.0
- Rose Levy Beranbaum. (1988). The Cake Bible. https://www.realbakingwithrose.com/the-cake-bible