Do you want to know how many cups are in an ounce? Do you want to convert ounces to cups? This guide will help you understand how to do it quickly and easily. The article also includes charts which you can save for later.
Recipes for cooking and baking frequently require exact measurements, and achieving these correct proportions is important for creating a tasty dish. Ounce-to-cup conversion can help us measure the ingredients accurately.
Key points
- One ounce is equal to ⅛ of a cup (one-eighth). This refers to liquids.
- One dry ounce-to-cup conversion will vary depending on the ingredient. For example, one ounce of flour is equal to ¼ cup and one ounce of chocolate chips is equal to ⅙ cup.
What is an ounce?
An ounce is a unit of weight used in the US customary and imperial systems of measurement. One dry ounce (meaning one ounce of a dry ingredient) weighs 28.3495 grams.
In addition to weight, “ounce” can also refer to fluid ounces, which are a measure of volume. One US fluid ounce is approximately 29.5735 milliliters.
What is a cup?
A cup is a measure of volume. It is used for measuring liquids and dry ingredients in cooking and baking.
In the US, 1 cup is 8 fluid ounces or half a pint. However, this is for liquid ingredients. For dry ingredients, the number of ounces in a cup varies depending on the ingredient itself.
A little history: Fannie Farmer first introduced the concept of using standardized measuring spoons and cups in her book “The Boston Cooking-School Cook Book, in 1896.
Different types of measuring cups
Liquid measuring cups: These are made of clear material – plastic or glass with markings and are used to measure liquids. The clear material helps to see the level of liquid ingredients.
Note: Cup sizes in US and UK are quite different from each other. So, when measuring make sure you are using the right cup sizes.
- 1 US legal cup = 240 milliliters or 8.11 US fluid ounces (used for nutritional labels)
- 1 US customary cup = 237 milliliters or 8 US fluid ounces (often used for cooking and baking)
- 1 UK (metric) cup = 250 milliliters or 8.45 US fluid ounces.
Dry measuring cups: These are usually made of metal or plastic and are used to measure dry ingredients like flour, chocolate chips, etc. When using these cups, it is important to level the top and remove any excess with a flat edge or spatula for accurate measurements.
Measuring spoons: These can be used to measure small quantities of dry and liquid ingredients.
How many cups are in a fluid ounce?
There is one-eight of a cup (⅛ ) in 1 fluid ounce.
How to convert fluid ounces to cups?
Here is the basic rule for this conversion: One US cup is equal to 8 fluid ounces. So, to convert ounces to cups, we can divide the number of ounces by 8. For example, to know the number of cups in 2 ounces, we will divide 2 by 8. It will be 0.25 cups (1/4 cup).
Common conversions:
- 4 oz to cups: The answer is 0.5 cups
- 6 oz to cups: The answer is 0.75 cups
- 8 oz to cups: The answer is 1 cup
- 12 oz to cups: The answer is 1.5 cups
- 16 oz to cups: The answer is 2 cups
- 32 oz to cups: The answer is 4 cups
On the other hand, if you want to convert cups to ounces, you can multiply the number of cups by 8. For example, 3 cups will be 24 ounces (3 multiplied by 8). For an easy conversion chart from cups to ounces refer to this article.
Fluid ounces to cups conversion chart
Below is the conversion guide and chart that will make it easier for you to convert ounces to cups.
For liquid fluids
US Standard = Metric (approximate)
- 1 teaspoon = ⅓ tablespoon = 5 ml
- 1 tablespoon = ½ fluid ounce = 3 teaspoons = 15 ml
- 1 fluid ounces = ⅛ cup = 2 tablespoons = 6 teaspoons = 29.6 ml
- 1 ½ fluid ounces = ⅕ cup = 3 tablespoons = 9 teaspoons = 44.4 ml
- 2 fluid ounces = ¼ cup = 4 tablespoons = 12 teaspoons = 59 ml
- 2 ½ fluid ounces = ⅓ cup = 5 tablespoons = 15 teaspoons = 74 ml
- 3 fluid ounces = ¼ cup + ⅛ cup = 6 tablespoons = 18 teaspoons = 89 ml
- 4 fluid ounces = ½ cup = 8 tablespoons = 24 teaspoons = 118 ml
- 5 fluid ounces = ½ cup + ⅛ cup = 10 tablespoons = 30 teaspoons = 148 ml
- 6 fluid ounces = ¾ cup = 12 tablespoons = 36 teaspoons = 178 ml
- 7 fluid ounces = ~1 cup = 14 tablespoons = 41 teaspoons = 207 ml
- 8 fluid ounces = 1 cup = 16 tablespoons = 47 teaspoons = 237 ml
- 9 fluid ounces = 1 ⅛ cups = 18 tablespoons = 53 teaspoons = 266 ml
- 10 fluid ounces = 1 ¼ cup = 20 tablespoons = 59 teaspoons = 296 ml
- 12 fluid ounces = 1 ½ cups = 24 tablespoons + 2 teaspoons = 71 teaspoons = 355 ml
- 16 fluid ounces = 2 cups = 31 tablespoons + 2 teaspoons = 95 teaspoons = 474 ml
- 20 fluid ounces = 2 ¼ cups = 39 tablespoons = 118 teaspoons = 592 ml
- 24 fluid ounces = 3 cups = 47 tablespoons = 142 teaspoons = 710 ml
- 28 fluid ounces = 3 ½ cups = 55 tablespoons = 166 teaspoons = 829 ml
- 30 fluid ounces = 3 ⅔ cups = 59 tablespoons = 888 ml
- 32 fluid ounces = 4 cups = 63 tablespoons = 947 ml ~ 1 liter
- 40 fluid ounces = 5 cups = 1184 ml
- 48 fluid ounces = 6 cups = 1421 ml
- 64 fluid ounces = 8 cups = 1894 ml ~ 2 liters
How many cups are in a dry ounce?
The above conversion chart is only for liquids. For dry ingredients like flour, almonds, cheese, and so on, there isn’t a single conversion factor.
The number of cups in an ounce will vary from one ingredient to another. For example, a cup of flour doesn’t weigh 8 ounces – it weighs around 4.2 ounces. So, one ounce of flour will be equal to 0.24 cups ~ ¼ cup (1 divided by 4.2)
How to convert dry ounces to cups?
For accurate measurements, it is best to weigh the cup of the dry ingredient. Then divide the value you get in grams by 28.35 (or 30 for easy calculations) to get ounces. The number of cups of the ingredient in one ounce will be 1 divided by the ounce value you get.
Let me give you an example: let’s weigh a cup of powdered sugar. The weight is usually around 210 grams. This value in grams is divided by 28.35 and it gives a value of 6 ounces. So, one cup has 6 ounces.
To convert ounces to a cup, divide 1 by 6, which will be ⅙ cup (one-sixth of a cup). So, there are ⅙ cups in one ounce of powdered sugar.
Dry ounces to cups conversion chart
The dry ingredients do take some work for the conversion. For your reference, I have a chart of the common ingredients below. However, keep in mind that the values are approximate and may vary depending on the brand of the ingredient and other factors.
For dry ingredients
- One ounce of blueberries is equal to ⅕ cup
- One ounce of butter is equal to ⅛ cup
- One ounce of shredded cheese is equal to ¼ cup
- One ounce of chocolate chips is equal to ⅙ cup
- One ounce of cocoa powder is equal to ⅓ cup
- One ounce of cornstarch is equal to ⅓ cup
- One ounce of cream cheese is equal to ⅛ cup
- One ounce of flour is equal to ¼ cup
- One ounce of popped popcorn is equal to 3 cups
- One ounce of cooked rice is equal to ⅛ cup
- One ounce of sour cream is equal to ⅛ cup
- One ounce of spinach is equal to 1 cup
- One ounce of powdered sugar is equal to ⅙ cup
- One ounce of brown sugar is equal to 1/7 cup
- One ounce of granulated sugar is equal to 1/7 cup
If you want to convert XX ounces to cups, simply multiply the cup by that number. For example, one ounce of flour is equal to ¼ cup. To convert 2 ounces of flour into cups, multiply ¼ cup by 2, which gives us ½ cup.
Takeaway
A cup and an ounce are units of measurement often used in cooking and baking. Knowing the number of cups in an ounce or converting ounces to cups can help us easily make conversions while making any recipe.
Don’t forget to save this article, so you can easily access this guide when you need it next time.
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