100 Ml in Cups
100 ml is 0.42 US cups, about 7 tablespoons. One hundred millilitres is the amount in a small espresso cup, a single serving of cream and a frequent quantity in dressings and sauces. In US cups it is 0.42 cups, which is not a measurement any cup set offers, so the practical answer is about 7 tablespoons. This page shows the exact figure, the spoon equivalent and the situations where each one is the right tool.
Why this conversion exists
Millilitres, cups, tablespoons, teaspoons, ounces and grams are all units for the same things, volume or weight, and the conversion between two units of the same kind is exact. One US cup is 236.59 ml, one tablespoon is 14.79 ml, one teaspoon is 4.93 ml, one ounce is 28.35 g and one pound is 453.59 g, and those definitions do not change between sources. The confusion comes from the other system: the metric cup is 250 ml, the metric tablespoon is 15 ml and the imperial pint is 568 ml, so a recipe's origin decides which cup it means. This page uses the US customary figures throughout, because that is the system American recipes are written in, and it says so wherever the metric figure differs. The tables below give the conversion for the amounts recipes actually ask for, and the worked examples show it in the dishes where it actually appears.
100 Ml in Cups conversion table
| Ml | Cups |
|---|---|
| 25 ml | 0.11 cups |
| 50 ml | 0.21 cups |
| 75 ml | 0.32 cups |
| 100 ml | 0.42 cups |
| 125 ml | 0.53 cups |
| 150 ml | 0.63 cups |
| 200 ml | 0.85 cups |
| 250 ml | 1.06 cups |
| 500 ml | 2.11 cups |
The table covers the amounts recipes actually ask for. One ml is 0.0042 cups, and every row is that factor multiplied by the amount in the first column, so the table is exact to the rounding shown. Where the conversion is exact, like 2 cups to 1 pint, the table says so in whole numbers; where it is rounded, like 500 ml to 2.11 cups, the unrounded value is close enough that the difference is smaller than the error in any cup measure.
The reverse conversion
The table above converts in the direction this page is about. The table below converts back, so a recipe written in the other unit converts just as easily, and the two tables together cover every direction a cook is likely to need.
| Cups | Ml |
|---|---|
| 1/4 cup | 59.1 ml |
| 1/2 cup | 118.3 ml |
| 1 cup | 236.6 ml |
| 2 cups | 473.2 ml |
Worked examples
Chicken stock for risotto calling for 100 ml
A chicken stock for risotto recipe that calls for 100 ml needs 0.42 cups. Risotto absorbs its stock gradually, and the total liquid determines whether the rice finishes creamy or chalky, so the starting amount has to be right. Pour it into a jug on a flat surface and read the meniscus at eye level, which is more accurate than any cup measure. That is the figure to measure: 100 ml in the units the recipe uses, or 0.42 cups in the units your jug or scale shows. Because the conversion is exact, the only error that can creep in is the measuring itself, so the tool matters more than the arithmetic. A recipe that calls for 100 ml and gets 0.42 cups will behave exactly as written, and a recipe that gets a rounded figure will behave almost exactly as written, which is close enough for cooking and usually close enough for baking too.
White sauce calling for 200 ml
A white sauce recipe that calls for 200 ml needs 0.85 cups. A white sauce is built on a fixed ratio of butter, flour and milk, and the milk is the part measured in cups or millilitres, so the conversion sets the sauce's thickness. If the recipe is a bake, weigh the liquid on a scale instead, because a jug reading is only as accurate as the jug's markings. That is the figure to measure: 200 ml in the units the recipe uses, or 0.85 cups in the units your jug or scale shows. Because the conversion is exact, the only error that can creep in is the measuring itself, so the tool matters more than the arithmetic. A recipe that calls for 200 ml and gets 0.85 cups will behave exactly as written, and a recipe that gets a rounded figure will behave almost exactly as written, which is close enough for cooking and usually close enough for baking too.
Fruit smoothie calling for 50 ml
A fruit smoothie recipe that calls for 50 ml needs 0.21 cups. A smoothie is forgiving, but the liquid is what makes it pourable: too little and the blender stalls, too much and the drink is thin and watery. A standard measuring jug holds this amount with room to spare, so there is no need to fill it to the brim. That is the figure to measure: 50 ml in the units the recipe uses, or 0.21 cups in the units your jug or scale shows. Because the conversion is exact, the only error that can creep in is the measuring itself, so the tool matters more than the arithmetic. A recipe that calls for 50 ml and gets 0.21 cups will behave exactly as written, and a recipe that gets a rounded figure will behave almost exactly as written, which is close enough for cooking and usually close enough for baking too.
Scaling the recipe up and down
Scaling works the same way in both directions, because the conversion is exact. Double the recipe and 100 ml becomes 200 ml, which is 0.85 cups. Halve it and you need 50 ml, which is 0.21 cups. When you scale, always do the arithmetic before you start measuring, and scale by the same factor in both units, because scaling mid-recipe is how errors creep in. Remember that a US cup is 236.59 ml while a metric cup is 250 ml: if the recipe comes from Australia, New Zealand or South Africa, one cup means 250 ml, and the figures on this page need adjusting by that 6 percent. Check which cup your recipe uses before you convert, and when the recipe really matters, weigh the ingredient on a scale, because grams do not change with the cup.
How the conversion is defined
The figures on this page are exact standard conversions, not measured densities, so there is no dispute to report and no laboratory to cite. One US customary cup is 236.59 ml by definition, one tablespoon is 14.79 ml, one teaspoon is 4.93 ml, one ounce is 28.35 g and one pound is 453.59 g. These are definitions of the units themselves, so they do not vary between sources the way ingredient densities do. The only judgement on this page is rounding: the tables give one or two decimal places, and the headline answers are rounded to the figure a cook can actually use. Where a conversion is exact, like 2 cups to 1 pint, the table says so. Where it is rounded, like 500 ml to 2.11 cups, the unrounded value is close enough that the difference is smaller than the error in any cup measure.
US cups versus metric cups
The conversion on this page uses the US customary cup, which is 236.59 ml. The metric cup used in Australia, New Zealand and South Africa is 250 ml, and the old imperial cup is 284 ml, so the same recipe can mean three different amounts depending on where it was written. A US recipe almost always means the 236.59 ml cup, while a recipe from Australia or New Zealand usually means the 250 ml metric cup. The difference is about 6 percent, which is small enough to ignore in a soup and big enough to notice in a cake: a cake that calls for two cups of milk needs 473 ml in US measures and 500 ml in metric measures, a gap of 27 ml. When a recipe does not say which cup it uses, look at its other units: grams and millilitres point to a metric recipe, while ounces and Fahrenheit point to an American one. And when the recipe really matters, convert by weight on a scale, because grams do not change with the cup.
Common mistakes
- Using a dry cup for a liquid. Dry cups are meant to be filled to the brim and levelled, which is wrong for a liquid. Use a jug with a spout and clear markings, and read the meniscus at eye level on a flat surface.
- Reading the jug from above. A jug read from above looks fuller than it is, because the meniscus curves up at the edges. Set the jug down, crouch to eye level and read the bottom of the curve.
- Confusing the US cup with the metric cup. A US cup is 236.59 ml and a metric cup is 250 ml, a difference of about 6 percent. A recipe from Australia or New Zealand almost always means the metric cup, so check the recipe's origin before converting.
- Rounding too early. Rounding 2.11 cups to 2 cups is fine in a soup but not in a cake, where the missing 26 ml is a real part of the batter. Convert first, round last, and only round when the recipe can absorb the difference.
Practical guidance
In practice, the millilitre column is the one to trust whenever a recipe gives you a choice, because a jug is marked in millilitres and a cup is not. Pour the liquid into the jug on a flat surface, crouch to eye level and read the bottom of the meniscus, which is the curved surface of the liquid, rather than the edges that climb the side of the jug. If the jug is marked in both millilitres and cups, use the millilitre side, because the cup markings on cheap jugs are often approximate. When a recipe calls for a volume that falls between two markings, pour to the nearer one and adjust by eye: the difference of a few millilitres will not change a soup, a sauce or a smoothie. It will change a custard or a sponge, so for baking, weigh the liquid on a scale instead, using the gram column where this page gives one, or the knowledge that a millilitre of water weighs a gram. And remember that a hot liquid expands slightly, so let stock or milk cool for a minute before measuring it, or measure it cold and heat it afterwards.
Frequently asked questions
Does this conversion change for different ingredients?
No. This is a conversion between two units of the same kind, volume to volume or weight to weight, so the ingredient does not matter: 100 ml is 0.42 cups whether the ingredient is water, flour, sugar or oil. The conversion only starts to depend on the ingredient when volume is converted to weight, or weight to volume, because that needs a density, and densities differ. The tables on this page are unit conversions, so they apply to every ingredient equally.
Can I round 0.42 cups to a simpler number?
Usually, yes, in cooking. Rounding 0.42 cups to the nearest round number is safe in a soup, a sauce, a stew or a smoothie, where a few millilitres or grams either way will not change the result. In baking, round less freely: a cake, a custard or a bread depends on its ratios, and the rounded figure is a real change to the recipe. Convert first, round last, and only round when the recipe can absorb the difference.
What is 1 ml in cups?
One ml is 0.0042 cups. That is the unit factor the whole table on this page is built on, and it is the number to use if you need to convert an amount that is not in the table. Multiply the amount you have by that factor and you get the amount you need, in the units the recipe asks for.
How many 100 ml are in double the recipe?
Double the recipe and 100 ml becomes 200 ml, which is 0.85 cups. Halve it and you need 50 ml, which is 0.21 cups. When you scale a recipe, scale by the same factor in both units, and do the arithmetic before you start measuring, because scaling mid-recipe is how errors creep in.
Why do American and metric recipes disagree about this amount?
Because the two systems define their units differently: the US cup is 236.59 ml while the metric cup is 250 ml, the US tablespoon is 14.79 ml while the metric tablespoon is 15 ml, and the US pint is 473 ml while the imperial pint is 568 ml. A recipe from the United States almost always means the US figures, while a recipe from Australia or New Zealand usually means the metric ones. Check the recipe's origin, and its other units, before converting.
Related conversions
Use the cups to millilitres converter, millilitres to cups converter, liquid volume converter for instant answers, or browse the units hub for every conversion on this site. Nearby pages in this series: 250 ml in cups, 500 ml in litres, 250 ml in litres. See also our disclaimer about approximate conversions and about CookScale for how our figures are sourced.