How many ounces in a cup?” is one of the most common questions that might pop up in your mind when you are in the kitchen in the middle of trying a new recipe.

Most recipes mentioned in magazines and cookbooks use different types of measuring units while describing the number of ingredients to be used.

Some might refer to these quantities using simple kitchen utensils like teaspoons, tablespoons, and cups while the other recipes might tell you to use ingredients in ounces, grams, and liters. And using each ingredient in the exact amount is the key to the success of each recipe.

Coming across such different units and ways of measurement can leave you scratching your head over the kitchen counter. But like every problem that exists in the world, there is a solution to this one as well.

You can go for the easiest solution, like opening an online tool and making these conversions by just adding values and letting the automated algorithms do the job for you. But this solution cannot be always accessible. As it requires a stable internet connection that can deceive you at any moment.

Another way would be to do these calculations and conversions in your head. But the problem with the feasibility of this solution is quite apparent. Everyone is not born a math genius and most of us can’t make these calculations in seconds.

So, the practical way to solve this problem is to divide it into simple steps, apply the standard formula of conversion, and get an accurate answer for how many ounces are in a cup?

A few variations exist in this method as well.

Although these units use the same terminology, their value is not the same. The exact value of each unit depends on the type of measurement you are making.

Whether it is a dry measurement (that uses weight) or a liquid measurement (that uses volume), and the type of measuring system you are using (whether it is the British Metric system or the American Imperial system).

In this article, I’ll show you how to quickly convert ounces and cups to use in various recipes. You’ll also find some most common conversions in the form of conversion charts that are ready to use.

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1 cup vegan milk in a measuring cup

What is an Ounce?

An ounce is one of the smallest units to measure mass, weight, or volume. It is widely used in American Imperial System and British Metric System for this purpose. The abbreviation “oz” is used to denote this unit which is derived from the Italian and Spanish word “Onza.”

Although mostly referred to as ounces, there are two different types of ounces; the dry ounce and the fluid ounce.

  • Dry Ounce

A dry ounce is a unit used to measure small weights. It is commonly used to measure dry ingredients like flour, nuts, seeds, and sugar, and sometimes also for honey and yogurt.

To measure such ingredients, you will need a dry measuring cup. You will need to weigh your ingredient in this case. This can result in different oz values for different ingredients while converting them into cups.

  • Fluid Ounce

Unlike the dry ounce that measures weights, the fluid ounce is used to measure small volumes. It is abbreviated as “fl oz.” So, if you need to measure liquid ingredients like milk, water, or cooking oil to use in your recipes, this is the unit you will be using.

Dry vs Fluid Ounce Measurements

When talking about the fluid ounce, one cup equals 8 ounces, or more accurately, 8 fluid ounces. But as the dry ingredients vary greatly in their weights, you will get different measurements for different ingredients.

For example, 1 cup of flour equals 4.5 ounces. But the same cup of chocolate chips will weigh a little bit over 6 ounces.

To overcome this discrepancy, it is recommended to use a cup while using liquid ingredients. But when you are measuring a dry ingredient, you should use a scale instead.

How Many Ounces in a Cup: Measuring Liquid and Dry Ounces?

Usually, we’re talking about fluid or liquid ounces when we say eight ounces in a cup. In a cup of water, how many ounces are there? In this case, a cup contains eight fluid ounces.

The weight and volume of liquids are comparable. That’s simple. But when it comes to dry measurements, things get a little more complicated.

Imagine two measuring cups on kitchen scales, side by side. The first is 8 oz. and is filled with water. The second is 3 oz. and is filled with popcorn. This experiment demonstrates how the number of dry ounces in a cup varies depending on what is being weighed.

For this reason, when we discuss measuring dry goods like flour, we refer to volume or how much room the flour takes up. We’re not talking about mass here, as we would be talking about grams or ounces.

table 1 While most people aren’t concerned with the size of the cup, they are using daily, professionals on a large scale, particularly chefs, are concerned with these matters because a slight difference in measurement can significantly differ the desired results. As a result, standards are established to make life easier for the general public.

Even though ounces and fluid ounces have the same name and comprise units of measurement, they are fundamentally different. Interestingly, each takes a unique measuring system: one measures weight, while the other measures volume.

Cups for Measuring Liquids

Liquid measuring cups are marked with a measurement line, which helps you to see how many fluid ounces are contained within the cup. They are often made of transparent plastic or glass. Along with measuring cups, some people also choose to utilize measuring instruments.

What is the volume of liquid ounces in a cup of water?

One cup equals 8 liquid ounces equal to 1/2 pint = 237 mL = 1 cup is equal to 8 liquid ounces. As a result, the answer to “how many ounces are in a cup?” is eight fluid ounces.

Measuring Cups for Dry Ingredients

You should level off dry measuring cups with a butter knife or something similar to ensure that the precise amount of ingredients is contained within them. Although dry materials might have the same volume, they may not have the same weight. Also take care not to pack in light ingredients such as flour, unless the recipe instructs you to do so.

On average, one dry cup is equal to 6.8 US dry ounces. One cup equals 16 tablespoons equals 8 ounces equals.5 pounds equals 221.23 grams.

How Many Dry Ounces in a Cup (Common Ingredients)

table 2 chart

Cups of Various Sizes were Used all Around the World

The cup is a centuries-old invention. It has been used for several years; it dates back to the early Bronze Ages. It’s a necessary component of drinking and eating food. Cups were utilized for both drinking and feeding purposes back in the day.

Cup sizes until the 19th century are not determined. There was no universal scale or international standard for it. People worldwide used to create them in their sizes because global trade was not yet at its pinnacle, and people weren’t aware of the standardization of its size.

People realized that as the world grew and commerce became more global in the late 19th century, there needed to be a standard size for just about everything to be more minor obstacles in business and large-scale production.

Different Types of Measuring Cups

Here are 3 different tools that you would be using while measuring dry and liquid ingredients.

Liquid Measuring Cups

These types of measuring cups are almost always made up of glass, plastic, or other transparent material. These cups are calibrated so the cook can make accurate measurements, by bringing them to their eye level.

These measuring cups are widely available in either one, two, or four-cup measures. Their see-through material makes it possible for the chefs to see as the liquid rise in them. These cups usually come with pouring spouts, to pour without spilling.

You can measure cups, ounces, and milliliters using these cups.

Granulated Measuring Cups

The granulated measuring cups are used for measuring dry ingredients like flour, sugar, rice, etc. one tip to get accurate measurements while measuring flour is to sieve it before adding it to the cup to get the accurate measurements.

Another important consideration would be to level the extra flour from the top using the spoon and scrape method. Remove extra flour by scraping it using a spoon to get the right quantity of flour while baking a cake or brownie.

Measuring Spoons

Two types of spoons, tablespoons, and teaspoons, are also commonly used to measure ingredients while cooking.

Difference Between American and British Cups

One thing that you must keep in mind while making any conversions for measurement units, is the specific system of the measurement you are following. It could be either Imperial System or the Metric System.

The Imperial System of measurements is widely used in the US. While in the UK the Metric System of measurement is more prevalent. A slightly modified Imperial system is also used in some areas of the UK but its application is rare.


A US cup and a UK cup are not equal in size. A US cup contains 240 mL or 8.45 fluid ounces. While in the UK, one cup is equal to 250 mL or 10 fluid ounces. The UK cup size is also used in countries like Canada, New Zealand, and Australia.


Here is what you should keep in mind while following US or UK recipes.



1 US Cup = 236.59 mL = 8 US fl oz

1 US Cup = 236.59 mL = 8.327 UK fl oz



1 UK Cup = 284.13 mL = 10 UK fl oz

1 UK Cup = 284.13 mL = 9.607 fl oz


Rest of the World

1 International Metric Cup = 250 mL = 8.454 US fl oz

1 International Metric Cup = 250 mL = 8.799 UK fl oz


You will find all kinds of discrepancies in these values due to the metric system being used in all other countries. For example, while one US Cup is equal to 8 fl oz, one Cup is equal to 6.7 oz (200mL) in Japan and one Cup in Canada is equal to 7.6 oz (227 mL).

What Is the Difference between Liquid and Dry Measurements?

Although dry and liquid ounces differ significantly in weight, measuring a cup in dry and fluid ounces is quite tricky. As a result, cooks measure dry and liquid ingredients separately in separate cups while baking and cooking.

In measuring, two different types of cups are employed. The standard cup holds eight fluid ounces, not dry ounces. We use a dry measuring cup to measure dry items, filling it almost entirely to the top.

In most cases, a dry cup equals 6.8 US dry ounces. A cup with a measuring scale that indicates the measurements in fluid ounces is used to measure liquid things, so a person knows how much liquid is consumed. Chefs use different cups for dry and liquid components in baking and cooking.

How to Measure Dry Ingredients Using a Cup?

Use a dry measuring cup while measuring dry ingredients. Fill up the cup with the dry ingredient lightly to the top. Level off the excess ingredient at the top by a spoon’s handle. To make sure of the accuracy of the measurement, you can weigh it on a scale as well.

Table 3 showing dry ingredients

How to Measure Liquid Ingredients Using a Cup?

You will need a liquid cup to make liquid measurements. You can find a liquid measuring cup with a pouring edge, to make this process more convenient. In the case of liquid measurements, you won’t need to weigh them afterward.

Conversion Tables

Dry Ounces to US Cups

Table 5 Table 6

Dry Measurements Conversion Chart (Imperial & Metric)

Ounces Grams Pounds
½ oz 15 g 0.03 lb
1 oz 30 g 0.06 lb
2 oz 60 g 0.13 lb
3 oz 85 g 0.18 lb
4 oz 115 g 0.25 lb
8 oz 225 g 0.50 lb
12 oz 340 g 0.75 lb
16 oz 455 g 1 lb

Cups to Ounces: Conversions Charts for Common Dry Ingredients


Flour measurement


Corn flour measurements



Rice measurement chart




For a delicious result in your food, you must follow the exact recipe as much as possible, and for that, you should know the adjustments such as how many ounces are in a cup. The quantity of liquid and dry ingredients is significant for the sake of a great dish that appears and tastes according to your expectations. It is important for both cooking and baking.

Apart from getting online conversions, conversion tables are one of the easiest and fastest ways of knowing how many ounces are in a cup?

Frequently Asked Questions

Are 2 tablespoons equal to 1 ounce?

Yes. 2 tablespoons are equal to 1 fl oz, 1/8 cup, 6 teaspoons, 30 mL, and 30 ccs.

How many 8 fl oz of water are there in a cup?

A US cup is made up of 8 fl oz of water. While 1fl oz is equal to 1/8 of a US cup.

How many cups make 8 oz?

8 fl oz make 1 cup.

How many fl oz make half a cup?

4 fl oz make a half cup.

How many fl oz make a quarter of a cup?

2 fluid ounces make a quarter cup.

How many ounces a cup of cooked rice has?

A cup contains 8 oz of cooked rice.



Fluid Ounces to US Cups

measuring cups for recipe

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