1 us cup equals 236.58824 milliliters. Enter a value below to convert instantly.
US cups to millilitres converts American recipe volumes into the measure printed on jugs and scales elsewhere. One US cup is 236.59 mL, which is why metric recipes settle on 240 mL or 250 mL as a working equivalent rather than the exact figure.
Multiply the number of us cups by 236.5882365 to get milliliters. How this is calculated
Need the other direction? Convert milliliter to us cup →
Multiply the number of us cups by 236.5882365 to get milliliters.
| US Cups (cup (US)) | Milliliters (mL) |
|---|---|
| 1 | 236.58824 |
| 2 | 473.17647 |
| 3 | 709.76471 |
| 5 | 1,182.9412 |
| 10 | 2,365.8824 |
| 20 | 4,731.7647 |
| 50 | 11,829.412 |
| 100 | 23,658.824 |
| 500 | 118,294.12 |
| 1,000 | 236,588.24 |
A jug marked in millilitres cannot be read in cups without this conversion. Two thirds of a cup is 158 mL — an amount no jug is marked for, which is why halving and thirding American recipes is awkward outside the US.
US labels use the 240 mL legal cup while measuring cups hold 236.59 mL. The 1.4% difference never matters in cooking and does matter if you are computing nutrition from a label at scale.
Converting to millilitres first makes scaling arithmetic trivial — 1.5 × 158 mL is easier and less error-prone than 1.5 × two-thirds of a cup.
Brew ratios are given per millilitre or per gram of water. A '6 oz cup' in coffee terminology is 177 mL, which is not a measuring cup at all — the word means something different again in that context.
Values people actually look up, with the reason each one comes up. Every figure is calculated with the same engine as the converter above.
| US Cup (cup (US)) | Milliliter (mL) | What it is |
|---|---|---|
| 0.25 | 59.147059 | A quarter cup |
| 0.333 | 78.783883 | A third of a cup |
| 0.5 | 118.29412 | Half a cup |
| 0.667 | 157.80435 | Two thirds of a cup |
| 1 | 236.58824 | The base conversion |
| 2 | 473.17647 | One US pint |
| 4 | 946.35295 | One US quart |
| 16 | 3,785.4118 | One US gallon |
The US customary cup is half a US liquid pint: exactly 236.5882365 mL. The US 'legal' cup used on nutrition labels is defined as exactly 240 mL, so a label and a measuring cup can legitimately disagree. The metric cup used in Australia and New Zealand is 250 mL, and an Imperial cup is 284 mL. All of these measure volume, which is a poor proxy for the amount of a dry ingredient — a cup of flour can vary by 20% depending on whether it was scooped or spooned.
Cooking tolerances are wide, so rounding a US cup to 240 mL is safe for almost everything except baking percentages and confectionery. What is not safe is treating a volume as a weight: for flour, sugar and other dry goods, weigh in grams instead. The cooking converter on this site applies real ingredient densities rather than a single conversion factor, which is the only correct way to move between a cup and a gram.
That is the Australian metric cup. A US cup is 236.59 mL — about 5% smaller. In a bread recipe, 5% on the water is a noticeable hydration change.
A cup of flour is roughly 120–130 g, a cup of granulated sugar about 200 g and a cup of honey about 340 g. There is no single cup-to-gram factor; the ingredient decides.
A US cup is 8 US fluid ounces of volume. It is not 8 ounces of weight, except by coincidence for water.
Content on this page last reviewed 12 August 2026. Spotted an error? Report it — see also how these values are calculated.
1 cup (US) expressed in every other volume unit on this site.
The us cup (cup (US)) is a US unit of volume.
The milliliter (mL) is a Metric unit of volume.
Half a US cup is 118.29 mL, normally rounded to 120 mL on metric equipment. A quarter cup is 59.15 mL, rounded to 60 mL.
A cup is 236.59 mL of volume regardless of what fills it — but a cup of flour weighs about 120–130 g depending on how it was measured. For baking, weigh the flour rather than converting its volume.
A litre is 4.23 US cups. Four US cups is 946 mL, which is one US quart — close to a litre but about 5% short of it.
One us cup equals 236.58824 milliliters.
Multiply the number of us cups by 236.5882365 to get milliliters.
One milliliter equals 0.0042267528 us cups.
This conversion is common when cooking recipes, fuel, beverages, and container capacity.