How Many Ounces in a Cup?
Cups to Ounces (oz) Conversion
How Many Ounces in a Cup?
Have you ever come across a recipe that calls for ingredients to be measured in ounces and cups, and found yourself wondering how many ounces in a cup? Let’s explore the relationship between ounces and cups.

Table of Contents
What is an Ounce?
An ounce is a unit of weight that is commonly used in the United States, United Kingdom, and other countries.
One ounce is equal to approximately 28.35 grams. It is important to note that the weight of an ounce may vary depending on the substance being measured.
For example, one fluid ounce of water weighs 1.043 ounces due to its density, while one ounce of feathers weighs less than one ounce due to their lightness.
What is a Cup?
A cup is a unit of volume that is commonly used in cooking and baking to measuring both dry and liquid ingredients. It is a standard unit of measurement in the United States. Although other countries such as Canada, Australia, and New Zealand also use cups in their recipes.
One U.S. customary cup is equivalent to 8 fluid ounces or approximately 236.59 milliliters. However, it is important to note that different types of cups may have different volumes.
For example, the Imperial cup used in the United Kingdom is equivalent to 10 fluid ounces or approximately 284 milliliters. It’s important to pay attention to which type of cup a recipe calls for to ensure accuracy in measuring ingredients.
How Many Ounces in a Cup?
In the United States, one cup is equal to 8 fluid ounces, so the formula for converting cups to ounces is:
1 cup = 8 fluid ounces
Conversely, the formula for converting ounces to cups is:
1 ounce = 0.125 cups
So, if a recipe calls for 2 cups of flour, you can convert that to ounces by multiplying 2 by 8, resulting in 16 ounces of flour needed.
Similarly, if a recipe calls for 16 ounces of milk, you can convert that to cups by dividing 16 by 8, resulting in 2 cups of milk needed.
Liquid Ingredients Conversion Chart
Cups | Fluid Ounces |
---|---|
1/8 cup | 1 fluid ounce |
1/4 cup | 2 fluid ounces |
1/3 cup | 2.67 fluid ounces |
1/2 cup | 4 fluid ounces |
2/3 cup | 5.33 fluid ounces |
3/4 cup | 6 fluid ounces |
1 cup | 8 fluid ounces |
2 cups | 16 fluid ounces |
3 cups | 24 fluid ounces |
4 cups | 32 fluid ounces |
Dry Ingredients Conversion Chart
Ingredient | Cup (c) | Ounces (oz) | Grams (g) |
---|---|---|---|
All-purpose flour | 1 c | 4.4 oz | 125 g |
Brown sugar (packed) | 1 c | 7.75 oz | 220 g |
Butter | 1 c | 8 oz | 227 g |
Confectioners’ sugar | 1 c | 4 oz | 113 g |
Cornmeal | 1 c | 5.5 oz | 156 g |
Granulated sugar | 1 c | 7 oz | 200 g |
Honey | 1 c | 12 oz | 340 g |
Milk (whole) | 1 c | 8.5 oz | 240 g |
Rolled oats | 1 c | 3 oz | 85 g |
Salt | 1 c | 10 oz | 284 g |
Semolina flour | 1 c | 5 oz | 142 g |
Shortening | 1 c | 7 oz | 200 g |
Water | 1 c | 8 oz | 227 g |
White rice (uncooked) | 1 c | 6 oz | 170 g |
Whole wheat flour | 1 c | 4 oz | 113 g |
You can also read “What is the Factorial of Hundred (100)? Free Factorial Calculator“
Different Types of Cups?
There are different types of cups used for measuring ingredients in different parts of the world. Here are a few examples:
- U.S. customary cup: This is the most commonly used cup measurement in the United States. One U.S. customary cup is equal to 8 fluid ounces or approximately 236.59 milliliters.
- Metric cup: The metric cup is used in some countries, including Australia and New Zealand. One metric cup is equal to 250 milliliters.
- Imperial cup: The imperial cup is used in the United Kingdom and is larger than the U.S. customary cup. One imperial cup is equal to 10 fluid ounces or approximately 284 milliliters.
- Japanese cup: The Japanese cup is used for measuring rice and is slightly smaller than the U.S. customary cup. One Japanese cup is equal to 6.4 fluid ounces or approximately 180 milliliters.
It’s important to pay attention to which type of cup a recipe calls for to ensure accuracy in measuring ingredients. If a recipe uses a different type of cup measurement than you’re used to, you’ll need to convert it to the appropriate measurement before measuring out your ingredients.
FAQ
Is 1 cup the same as 8 oz?
Liquid measuring cups indicate that 1 cup = 8 ounces.
Is a cup 16 oz or 8 oz?
In general, a cup is equivalent to 8 fluid ounces when measuring liquids. However, when measuring weight, such as flour or sugar, one cup may weigh 16 ounces or more, depending on how the ingredient is packed into the measuring cup.
How many ounces are in a pound?
There are 16 ounces in a pound.
How many cups is 1 oz dry?
In general, one ounce of a dry ingredient will measure out to be approximately 1/8 to 1/4 of a cup.
-> One ounce of all-purpose flour is approximately 1/4 cup.
-> One ounce of granulated sugar is approximately 2 tablespoons.
-> One ounce of uncooked long-grain white rice is approximately 2 tablespoons.
Does 4 ounces equal 1 cup?
In general, four ounces (4 oz) make up half a cup (1.5 cups). That’s about 113.4 grams.