How to convert cups to ml

How to convert cups to ml might get puzzling at times. If you’re browsing through US recipes and happen to hail from Europe, you might notice that a majority of these recipes prefer using cups as their go-to measurement. It can be a tad frustrating, can’t it?

The real challenge arises when you attempt to convert these cup measurements. It would be simpler if there were just one standard cup, right? But alas, it’s not that straightforward. You’ve got metric cups, customary cups, imperial cups, Canadian cups, and a whole bunch of other variations – roughly seven different measuring cups to contend with!

In this quick guide, we’ll break down the conversion of cups to ml (and the reverse), ensuring you never miss a beat while whipping up your favorite dishes!

First, how many milliliters are in 1 US Customary cup?

1 US customary cup equals 236,588 ml.

Convert cups to ml video

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Free printable cups to ml conversion charts

US customary cup to ml

US legal cup to ml

Metric cups to ml

Imperial cups to ml

Canadian cups to ml

Japanese cups to ml

Australian cups to ml

Find attached conversion charts for converting cups to liters, cups to dl and cups to tablespoons in the kitchen conversions category. Check our cups to pints conversion table, too.

How to convert US Customary cups to ml

The most common cups you’ll find yourself converting often are the good old US Customary cups.

Basically, all you need to remember is that one cup equals 236.588 ml, which can be rounded to about 237 ml.

So how do you do it? Just multiply the number of cups by the conversion factor of 237 (or, more precisely, 236.59), and you’ll get the equivalent volume in milliliters.

US customary cup = ml x 236.588

The reverse conversion

To convert milliliters (ml) to cups, you need to use the reciprocal of the conversion factor we discussed earlier. The reciprocal is 1 divided by 236.588, which is approximately 0.004227.

1 ml = US Customary cup / 236,588


1 ml = 0.00422675 cup

Convert cups to ml - the US customary cups to ml conversion chart

How to convert US legal cups to ml

The standard U.S. cup is crucial in offering nutritional details and dietary recommendations in the United States. It acts as a precise unit of measurement that adheres to the nation’s regulations on nutrition labeling.

Guided by the Code of Federal Regulations overseeing nutrition labeling standards in the U.S., the cup and its volume were redefined to be 240 ml.

For a straightforward conversion from cups to milliliters (ml), you can use the established conversion factor: 1 cup equals 240 ml:

1 US legal cup240 ml

1 ml ≈ 1 us legal cup ÷ 240 ml ≈ 0,00416 US legal cup

Converting cups to ml - the US legal cups to ml conversion chart

How to convert Imperial cups to ml

The imperial cup is part of the British Imperial System, established in the 19th century under Queen Victoria’s reign through the Weights and Measures Act of 1824. Defined as 1/20th of an imperial pint, it played a role in standardizing measurements across the British Empire. With the global adoption of the metric system, the imperial cup has waned in official use but may still be found in older recipes and historical contexts.

To delve into the specifics, an imperial pint comprises 20 imperial fluid ounces. Going further, each imperial fluid ounce is 1/160th of an imperial gallon. Expressed in metric terms, it equates to an exact volume of 284.131 milliliters.

You can simply convert imperial cups to milliliters by multiplying the number of cups by the conversion factor of 284.131.

Imperial cup284.131 milliliters

For example, if you have 2.5 imperial cups and want to convert them to milliliters:

ml ≈ 2.5×284.131

ml ≈ 710.328

To convert milliliters to imperial cups, divide the milliliters by the reciprocal conversion factor of 0.003522.

1 ml0.003522 imperial cups

Let’s suppose you have 500 milliliters and want to convert it to imperial cups:

Imperial cups ≈ 500 ÷ 0.003522

≈ 141.96 Imperial cups

 How to convert cups to ml - the US imperial cups to ml conversion chart

How to convert metric cups to ml

Metric cups are part of the metric system, a measurement system originating in France in the late 18th century for its simplicity and universality. In this system, 1 liter equals 1000 milliliters, making a metric cup approximately 250 milliliters.

Adopted by a significant portion of the world, the metric system facilitates easy conversions due to its decimal-based nature. The history of metric cups is closely tied to the broader metric system’s evolution, providing a consistent and widely accepted method for measuring volume.

To convert a metric cup to milliliters, you can use the standard definition, which considers 1 metric cup equivalent to 250 milliliters.

1 metric cup25o ml

For example: 3 metric cups x 250 ml/cup ≈ 750 ml

Reversely, to convert milliliters to metric cups, divide the number of milliliters by the reciprocal conversion factor of 0.004

1 ml 0.004 metric cups

For example, if you have 700 milliliters and want to convert it to metric cups:

metric cups ≈ 0.004 x 700 ml

≈ 2.8 metric cups

Convert cups to ml - metric cups to milliliters conversion table

How to convert Canadian cups to ml

Canada shifted toward the metric system in the 1970s, transitioning from imperial units to a more globally embraced system. Despite this change, traces of the imperial system linger in Canadian culture, especially in the kitchen. You will still find older recipes using Canadian cups.

The so-called “Canadian cup,” quantified as 8 imperial fluid ounces or 1/20th of an imperial gallon, represents a specific volume of 227.3045 milliliters. This measure refers to when imperial units like fluid ounces and gallons were a part of everyday Canadian life.

When converting a Canadian cup to ml, use a simple equation:

ml =cups x 227.3045

Imagine your recipe calls for 2 Canadian cups. Here’s how you’d convert it:

ml ≈ 2 x 227.3045 ml

ml ≈ 454.609

Converting milliliters to Canadian cups involves dividing the given milliliters by the specific volume of a Canadian cup:

Canadian cups = ml ÷ 227.3045

For example, if you have 500 milliliters, the conversion would be:

227.3045 ÷ 500 ​≈ 2.20 Canadian Cups

cups Canada to ml conversion chart

How to convert Japanese cups to ml

In Japanese cooking, they use a different cup size, known as the Japanese cup, called the “go” cup, which measures about 200 milliliters. This cup is a standard measure for various ingredients like rice, flour, sugar, and liquids such as soy sauce or broth. It’s a common unit in Japanese recipes, providing accuracy and authenticity in their culinary traditions. So, if you’re trying out Japanese dishes, knowing about the Japanese cup for precise measurements is handy.

If you want to convert Japanese cups to milliliters, just remember that 1 Japanese cup is about 200 milliliters. The simple formula goes like this:

Milliliters ≈ Japanese Cups x 200

Suppose you have 3 Japanese cups and you want to convert them to ml:

ml = 3 X 200 600

To convert ml into Japanese cups, use the reverse equation:

Japanese cups = ml ÷ 200

For example, if you have 400 milliliters and want to know how many Japanese cups there are:

400 ÷ 200 ​≈ 2 Japanese cups

Converting Japanese cups to ml - free printable conversion chart

How to convert Australian cups to ml

In Australia, the metric cup is used for cooking. It’s the go-to for measuring ingredients and part of the metric system Australia switched to back in the 1970s. This cup is set at 250 milliliters, making it easy to work with.

To convert an Australian cup to milliliters, you can use the standard metric conversion factor. In Australia, 1 cup is equivalent to 250 milliliters. Therefore, the conversion formula is:

ml ≈ Australian cups x 250

Let’s say you have 4 Australian cups. The conversion would be:

ml ≈ 250 ml x 4 ≈ 1000 ml

So, 4 Australian cups are equal to 1 liter.

You can use the reverse calculation if you have a milliliter volume and want to find out how many Australian cups there are. Since 1 Australian cup is equal to 250 milliliters, you can use the formula:

Australian cups ≈ ml ÷ 250

For example, 650 ml converted in Australian cups looks like this:

Australian cups 600 ÷ 250


Cups Australia to ml conversion chart

More practical examples of converting cups to ml

Here are some more practical examples of converting cups to ml:


Let’s use the conversion factor for US customary cups, where 1 cup is approximately 236.59 milliliters. Now, to convert 10 US customary cups to milliliters:

ml cups x 236.59

ml 10 x 236.59

ml 2365.9

So, 10 US customary cups would be approximately 2365.9 milliliters (or 2,3659 liters).


Now we’ll use the conversion factor for metric cups remember 1 cup equals 250 ml:

ml cups x 250

ml 0.75 x 250

ml 187.5

As a result, 0.75 of a metric cup measures approximately 187.5 ml.


Let’s say you wish to know how many ml are in 1.75 Canadian cups from an old Canadian recipe where one cup measures about 227.3045 ml:

ml cups x 227.3045 ml

ml 1.25 x 227.3045 ml

ml 284.13

We can see that 1.25 cups in Canada result in 284.13 ml.


To calculate 1.75 Japanese cups to milliliters, for example, you can use the conversion factor that defines 1 Japanese cup as approximately 200 milliliters.

ml cups x 200 ml

ml 1.75 x 200 ml

ml 350

Clearly, 1.75 Japanese cups would be equivalent to 350 milliliters.


Let’s return to US customary cups, where one cup equals 236.59 ml. To calculate how many ml are in a 1/2 cup, multiply this fraction by the volume of one cup:

ml cups x 236.59 ml

ml 0.5 x 236.59 ml

ml 118.295

So, 1/2 US customary cup measures 118.295 ml.


Now, let’s see how to calculate how many milliliters are in 1 1/4 cup:

ml cups x 236.59 ml

ml ( 1+ ¼ ​) x 236.59 ml

ml 5/4 ​ x 236.59 ml

ml 295.7375

As a result, 1 1/4 US customary cup is approximately equal to 295.7375 milliliters.

The fastest ways to convert cups to ml

So, what are the fastest ways to convert cups to ml while cooking? We find these ways below the fastest and the easiest to convert 1 cup (or more cups) to milliliters:


Google typically shows results for common conversions, including those from cups to other units of measurement, in a straightforward and user-friendly manner.

You start by typing your conversion query into the Google search bar. For example, you might enter “1 cup to milliliters.” The search results page will most likely display an immediate result.

However, Google may not show results for every possible conversion from cups to other units. It typically provides conversions for standard units, but for more specific or less frequently used units like Imperial cups or Canadian cups, you might need to find specialized tools or websites that post about kitchen conversions.


US customary cups to ml

US legal cups to ml

Metric cups to ml

Imperial cups to ml

Canadian cups to ml¸¸

Japanese cups to ml

Australian cups to ml


If you cook a lot, it might be a good idea to use a cup labeled with milliliters (ml) alongside cups to avoid the conversion hassle. This way, you can follow recipes from anywhere worldwide without converting measurements.

It’s like having a little kitchen translator. Your cup is ready for any recipe, whether American or international.

image showing a measuring cup that is labeled both with cups and ml


Using an online calculator for converting cups to milliliters is another convenient and error-free way to handle conversions quickly and efficiently from any internet-enabled device.


To easily memorize the conversion from 1 cup to ml, think of 1 cup as being close to a 250 ml mug.

While the precise conversion of 1 US Customary cup to ml is 236.59 ml or one metric cup to ml is 250 ml, simply rounding the cup up to 250 ml or 240 ml, depending on the recipe you are using, simplifies things without sacrificing much accuracy. In most everyday cooking and baking scenarios, this rounded value is sufficient.

Over time, you’ll automatically recall that 1 metric cup measures 250 ml and one US customary cup approximately 240 ml.

Conclusion – how to convert cups to milliliters

I think we all agree the world needs a universal measuring cup. But since we probably won’t see one in the future, there are other ways to ease your life in the kitchen.

One is rounding the converted cup and ml values and memorizing the measurements, which makes following the recipe somewhat easier. Another good idea is to use a measuring cup labeled with both cups and ml.

When calculating ml in US cups, using an online converter or Google is ok, but most likely, it won’t calculate all other types of cups.

In that case, using free printable kitchen conversion charts sounds like the best solution. Feel free to print the ones you need.


What is one cup in ml in the UK?

The old UK cup measures 284 ml, but hardly anyone is using it these days. The UK officially adopted the metric system for most measurements, including volume, in the 20th century. In the UK recipes, the metric cup, with a volume of 250 milliliters, is most likely used.

Who uses cups, and who uses milliliters?

Except for a few countries like the United States, Canada, and Australia, most of the other countries have adopted the metric measurement system and are using ml instead of cups.

Why do some countries use cups and some metric measures?

The use of US customary cups in cooking goes way back to historical culinary practices. Using cups was a convenient and handy measurement system for both traditional and contemporary recipes. The widespread availability of measuring cups and spoons further made it even more popular.

Despite the fact that most of the world shifted to the more precise metric system, the US customary cups persisted, mostly influenced by cultural and historical culinary practices.

Is measuring more accurate with cups or with ml?

It’s much more accurate to measure ingredients like flour, butter, milk, etc., using the metric measurement system due to its consistent base-10 structure than using cups.

How do you round the values when converting cups to ml?

Adjust rounding based on the sensitivity of the recipe. Baking may require more precision than everyday cooking.

For precise recipes, especially when baking, consider rounding to two decimal places for more accurate measurements.

Is one cup of water the same as a cup of flour in ml?

Yes, one cup of water is the same volume as one cup of flour when measured in milliliters. However, remember volume is not the same as weight. While 1 cup of water weighs 236.59 grams, the weight of flour may vary depending on the density, type of flour, and how it’s measured.

More free kitchen conversion charts

Cups to dl

Cups to Liters

Cups to tablespoons

Cups to pints

375 F to C

200 Celsius to Fahrenheit

How to convert cups to ml

Convert US customary, US legal, Imperial, metric, Canadian, Australian an Japanese cups to ml and ml to cups with ease.
Total Time 1 minute


  • 1 calculator


  • Find the conversion factor between cups and ml. For example, the conversion factor for converting US customary cups to ml is 1 cup = 236.588 ml (rounded to three decimal places).
  • To convert cups to ml, simply multiply the number of cups by the conversion factor. For example, ml in two cups = 2 cups x 236.588 = 473.176 ml
  • To calculate cups in one milliliterdivide 1 ml by the conversion factor: 1 ml ÷  236.588 /cup = 0.00422675 cup


US Legal Cups: 1 cup ≈ 240 ml
Imperial Cups: 1 cup ≈ 284.131 ml
Metric Cups: 1 cup ≈ 250 ml
Canadian Cups: 1 cup ≈ 227.3045 ml
Australian Cups: 1 cup ≈ 250 ml
Japanese Cups: 1 cup ≈ 200 ml
0.0042267 US customary cups 
0.00416 US legal cups
0.003522 imperial cups
0.004 metric cups
0,00439 Canadian cups 
0,005 Japanese cups 
0,004 Australian cups
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Author: Food Nutters

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  1. 5 stars
    Wow, I never knew there were so many different cups. Indeed it would be much easier to only use the metric system. Nice conversion charts though!

    1. Thanks Julia, feel free to use them as much as you like. Happy baking!

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