Cups (US) to milliliters conversion table
Every row is computed with the exact factor the converter above uses:
1 cup = 236.588237 ml (ml = cup × 236.588237).
Looked-up values are rounded to 0 decimals;
type any amount into the tool for other cups (us) values.
| cup | ml |
|---|---|
| 0.25 cup | 59 ml |
| 0.33 cup | 78 ml |
| 0.5 cup | 118 ml |
| 0.67 cup | 159 ml |
| 0.75 cup | 177 ml |
| 1 cup | 237 ml |
| 1.25 cup | 296 ml |
| 1.33 cup | 315 ml |
| 1.5 cup | 355 ml |
| 1.67 cup | 395 ml |
| 1.75 cup | 414 ml |
| cup | ml |
|---|---|
| 2 cup | 473 ml |
| 2.25 cup | 532 ml |
| 2.33 cup | 551 ml |
| 2.5 cup | 591 ml |
| 2.67 cup | 632 ml |
| 2.75 cup | 651 ml |
| 3 cup | 710 ml |
| 3.25 cup | 769 ml |
| 3.5 cup | 828 ml |
| 3.75 cup | 887 ml |
| 4 cup | 946 ml |
| cup | ml |
|---|---|
| 4.25 cup | 1,006 ml |
| 4.5 cup | 1,065 ml |
| 4.75 cup | 1,124 ml |
| 5 cup | 1,183 ml |
| 6 cup | 1,420 ml |
| 7 cup | 1,656 ml |
| 8 cup | 1,893 ml |
| 10 cup | 2,366 ml |
| 12 cup | 2,839 ml |
| 16 cup | 3,785 ml |
| 20 cup | 4,732 ml |
Going the other way? Use the milliliters to cups (us) converter.
A recipe says “1.5 cups of water” and your only measuring tool is a jug marked in ml. Now what? You multiply, that’s what, and this tool does it the instant you type. The hitch is that “a cup” isn’t a single agreed size, so the right answer depends on where the recipe came from.
Most recipes you’ll meet online assume the American measure. One US cup is 236.588 ml. So 1.5 cups is about 354.9 ml, two cups is 473.2 ml, and a single half cup lands at 118.3 ml. Clean math, no formula, just a fixed multiplier running as fast as you can enter numbers.
The cup problem nobody mentions on the recipe card
Here’s the part that quietly ruins bakes. There’s more than one cup standard in circulation:
- US cup: 236.588 ml. What American recipes and the big recipe sites default to.
- Metric cup: 250 ml. Standard across Australia, New Zealand, and plenty of countries that adopted metric cleanly. It’s what’s printed on a lot of European measuring cups too.
- Old UK cup: roughly 284 ml. Imperial-era, lurking only in vintage British cookbooks.
The spread between a US cup and a metric cup is about 5.6%. Pour one cup of stock for a soup and nobody on earth will taste the difference. Stack that 5.6% across four cups of flour in a cake, though, and the ratio shifts enough to change how it rises. The converter lets you pick which cup you mean, so a recipe written for one standard translates straight into the other.
Numbers you’ll reach for constantly
The common fractions are all sitting in the conversion table above, so you can read them off without typing. The ones that come up in basically every kitchen session: 1/4 cup is 59.1 ml, 1/3 cup is 78.9 ml, 1/2 cup is 118.3 ml, 3/4 cup is 177.4 ml, and a full cup is 236.6 ml. Double up and two cups is 473.2 ml.
How to use it
Type a cup value and the milliliter result appears on the spot, no submit button. Use the toggle to switch between US and metric cups so you’re matching whatever the recipe assumes. It’s a fixed-factor calc that runs in the page itself with the exact 236.588 number baked in, which means nothing you enter gets uploaded and it stays usable offline once the page has loaded.
One honest limit worth stating: this converts volume to volume only. It can’t tell you what one cup of flour weighs in grams, because that hinges on the ingredient’s density, and packed brown sugar weighs very differently from sifted flour. For dry baking precision, a kitchen scale beats any cup. But when a recipe hands you cups and your gear only speaks milliliters, this is the conversion you want.
Common questions
How many ml is 1 cup?
236.588 ml for a US cup, which is what most recipes mean. A metric cup is 250 ml, and the old UK imperial cup was about 284 ml. The tool uses the exact figures, not rounded ones.
How many ml is 1/3 cup?
A third of a US cup is 78.9 ml. It’s an awkward fraction to eyeball, which is why it trips people up: not quite 80 ml, and there’s no clean metric equivalent.
How many ml is a stick of butter?
A US stick of butter is 1/2 cup by volume, so 118.3 ml. Recipes that measure butter in sticks map cleanly to that half-cup mark, though for baking most cooks weigh it (one stick is 113 grams) instead.
Is a cup 250 ml or 240 ml?
Neither, strictly. A US cup is 236.588 ml. The 250 ml figure is the metric cup used in Australia and elsewhere, and 240 is just a common rounding of the US cup you’ll see on some labels.
Why doesn’t 1 cup equal exactly 250 ml?
Because the US cup descends from an 8 fluid ounce measure, which works out to 236.588 ml, not a round 250. Metric countries defined a tidy 250 ml cup separately, and the two were never merged.
Can I use this to convert cups of flour to ml?
Yep, a US cup is 236.588 ml whether it holds flour or water, since that’s a volume. But converting cups to grams for dry goods needs the ingredient’s density, which this volume tool doesn’t handle. Weigh dry ingredients for accuracy.
Does anything get sent to a server?
Nope. It’s plain browser arithmetic with a fixed factor, so your values stay on your device and it runs offline after the page loads.