Cups to Tablespoons Converter
Use this for smaller liquid measurements when a recipe drops below a full cup.
Last updated: July 2026
Cups to ML Converter
Convert with the cup standard your recipe actually uses.
A cup isn't a cup isn't a cup - at least not across borders. A US cup holds 236.6 ml, but the metric cup used in Australia and New Zealand holds a rounder 250 ml, and the UK imperial cup holds a larger 284 ml. That's up to a 20% difference depending on where a recipe came from. This converter defaults to the US standard, but shows you all three, so you're never guessing which "cup" or informal "mils" a recipe actually means.
Regional cup calculator
Convert cups and milliliters
US cup selected: 1 cup = 236.6 ml. This is the safest default for most online recipes.
236.6
ml
1 cup x 236.6 = 236.6 ml
Reading a clear liquid cup at eye level matters as much as the conversion number.
Regional standards
Which "Cup" Does Your Recipe Mean?
The "cup" as a kitchen measurement was never internationally standardized - it evolved separately in different English-speaking regions. The US customary cup, at 236.6 ml for practical kitchen use, comes from older British Imperial units that were later redefined slightly differently in America. The UK still uses a larger imperial cup at about 284 ml, though modern British recipes have largely moved to grams and are less likely to specify cups at all. Australia, New Zealand, and much of the metric-influenced world settled on a cleaner, rounder 250 ml cup - easier to work with in a metric kitchen, but meaningfully different from both older standards. None of these are "wrong," but using the wrong one for a given recipe can throw off ratios enough to matter, especially in baking, syrups, custards, and any formula where liquid-to-dry balance controls texture.
Here's how to figure out which cup a recipe means: check the spelling, temperature scale, publisher location, and units used elsewhere in the recipe. If it uses "color," "flavor," and lists other measurements in ounces or Fahrenheit, it's almost certainly using the US cup at 236.6 ml. If it uses "colour," "flavour," and lists metric weights in grams alongside cup measurements, it may be Australian or New Zealand and therefore likely using the 250 ml metric cup. British recipes are the trickiest: older or traditional UK recipes may use the 284 ml imperial cup, but most modern British recipes have shifted to weighing ingredients in grams entirely and rarely use cups at all. When genuinely unsure, defaulting to the US standard is the safest bet because it is the most commonly referenced cup standard online, especially across recipe blogs and search results.
Consider a cake recipe calling for 2 cups of liquid. Using the US standard, that's about 473 ml. Using the Australian metric standard, it's 500 ml - a 27 ml difference, or about 5.6%. The UK imperial cup is larger still: 2 UK cups are about 568 ml, almost 95 ml more than the US result. That might not sound dramatic when looking at one measuring jug, but scaled across a full recipe with milk, water, oil, syrup, or fruit puree, the cumulative effect can shift a batter's consistency enough to affect baking time, crumb, rise, and texture. For dry ingredients measured by volume, the effect is similar - small individually, compounding across a full recipe.
The important takeaway is not that one region is more accurate. The important takeaway is that the recipe author probably had one measuring cup in mind when testing the dish. A US cook following an Australian slice recipe with a US cup may under-measure every cup line by roughly 5.4%. An Australian cook following an American pancake recipe with a metric cup may over-pour each cup line by about the same amount. For soups, smoothies, and sauces, you can often adjust by eye. For baking, choose the regional cup first, convert once, and keep that standard consistent from the first ingredient to the last.
Quick reference
Cups to Milliliters Across US, UK, and Metric Standards
Use this table to quickly compare how the same cup measurement translates across all three standards before you start pouring into a measuring jug.
| Cups | US Cup (ml) | UK Cup (ml) | Metric Cup (ml) |
|---|---|---|---|
| 1/4 | 59 ml | 71 ml | 63 ml |
| 1/3 | 79 ml | 95 ml | 83 ml |
| 1/2 | 118 ml | 142 ml | 125 ml |
| 2/3 | 158 ml | 189 ml | 167 ml |
| 3/4 | 178 ml | 213 ml | 188 ml |
| 1 | 237 ml | 284 ml | 250 ml |
| 1.5 | 355 ml | 426 ml | 375 ml |
| 2 | 473 ml | 568 ml | 500 ml |
Measuring technique
How to Read a Measuring Cup Correctly
Even with the right conversion number, misreading a measuring cup is a surprisingly common source of error. For liquid measuring cups, typically clear with a spout, place the cup on a flat surface and check the measurement at eye level, not from above - looking down at an angle can make the liquid appear higher or lower than it actually is, a distortion called parallax error. Read the bottom of the meniscus, the slight curve at the top surface of the liquid, against the marked line. This small posture change matters most when you are measuring 1/4 cup, 1/3 cup, or a narrow milliliter mark where the distance between lines is small.
For dry measuring cups, typically opaque and sold in nested sets, the correct technique is different: these cups are meant to be filled completely and leveled off flat, not read from a marked line, because dry ingredients do not settle evenly enough for a side-marked scale to be accurate. Using a liquid measuring cup for dry ingredients, or a dry cup for liquids, is a common mistake that can introduce 5-10% error even when the conversion math is correct. If you are converting a liquid recipe to milliliters, use a liquid jug. If you are converting flour or sugar by volume, use the proper dry cup or switch to grams.
Recipe origin check
How to Choose the Right Cup Standard Before Converting to ML
The most important cups-to-ml decision happens before the math: identify which cup standard the recipe expects.
Use the recipe's context before you use the calculator. American recipes usually pair cups with Fahrenheit oven temperatures, terms like all-purpose flour, sticks of butter, tablespoons, and fluid ounces. In that environment, choose the US cup at 236.588 ml. Australian and New Zealand recipes often pair cups with grams, Celsius temperatures, and metric oven notes; when they use cups, the metric 250 ml cup is the safer assumption. Older British or Commonwealth sources may occasionally imply an imperial cup near 284 ml, but most modern UK recipes have moved toward grams and milliliters instead of cups.
The difference looks small at one cup but compounds across a recipe. Four US cups equal about 946 ml, while four metric cups equal exactly 1,000 ml. In soup, punch, stock, or a casserole sauce, that extra 54 ml may not matter. In sponge cake, custard, enriched dough, or gelatin desserts, the added liquid can change texture. If you are adapting a recipe from another country, convert every cup amount using the same standard rather than mixing US cups for one ingredient and metric cups for another. Consistency matters more than memorizing every regional exception.
For printed family recipes with no country clue, look at the age and surrounding measurements. A handwritten recipe from a US relative probably means US cups. A recipe clipped from an Australian magazine likely means 250 ml cups. A recipe that lists "mils" instead of "ml" still means milliliters; it is just casual wording. If uncertainty remains and the recipe is high-risk, convert the liquids to milliliters and the dry ingredients to grams, then make a note on the recipe card after the first successful test. That creates a reliable version you can repeat without re-solving the cup standard each time.
FAQ
Cups to ML Converter Questions
How many ml is 1 cup?
For a US cup, 1 cup equals 236.6 ml in practical kitchen use. For a UK imperial cup, it is about 284 ml, and for the metric cup used in Australia and New Zealand, it is exactly 250 ml. If a recipe does not specify which standard it uses, the US standard is the most common default online, especially on American recipe sites.
What does "mils" mean in cooking conversions?
"Mils" is an informal shorthand for milliliters, most often used in casual typed searches rather than formal recipe writing. It refers to the exact same unit as "ml" - there is no functional difference between the two. A search for "cups to mils converter" is usually just asking for cups to milliliters with the spelling shortened or written phonetically.
Is a metric cup the same as a US cup?
No. A metric cup, used in Australia and New Zealand, holds exactly 250 ml, while a US cup holds about 236.6 ml. That is roughly a 5.6% difference. It is small enough to ignore for many casual savory recipes, but it can matter in precise baking where liquid, flour, sugar, and fat ratios need to stay balanced.
How many ml is a UK cup?
A UK imperial cup holds about 284 ml, noticeably larger than both the US cup at 236.6 ml and the metric cup at 250 ml. However, most modern British recipes have moved away from cup measurements entirely in favor of weighing ingredients in grams, so if a current UK recipe includes cups, check the context carefully before assuming the imperial cup.
How do I know which cup standard a recipe is using?
Check the spelling, temperature scale, source country, and other units used in the recipe. American spelling and Fahrenheit temperatures usually indicate a US cup. Australian or New Zealand recipes that list grams alongside cups usually mean the 250 ml metric cup. Older UK sources may mean the imperial cup. When genuinely unsure, the US standard is usually the safest default.
How many cups is 500 ml?
Using the US standard, 500 ml is about 2.11 cups. Using the metric cup standard, it is exactly 2 cups, because the metric cup was defined as 250 ml for cleaner round-number conversions. Using the UK imperial standard, 500 ml is about 1.76 cups. Use the standard selector in the calculator before comparing results.
Why do liquid and dry measuring cups look different?
Liquid measuring cups have a spout and marked lines so you can read the volume at eye level after the liquid settles. Dry measuring cups are solid vessels meant to be filled completely and leveled off. Dry ingredients do not settle evenly enough for side markings to stay reliable, which is why flour, sugar, and powders are handled differently from water, milk, or broth.
Does 1 cup of water equal 236.6 ml exactly?
For the US customary cup, the official definition is 236.588 ml, commonly rounded to 236.6 ml for practical kitchen use. This is a fixed volume conversion and does not change based on what liquid is being measured. One US cup of water, milk, juice, or broth occupies the same milliliter volume, even though the weight may differ slightly.
Methodology
Data Sources and Review Method
Cup-to-milliliter conversions on this page follow official standard definitions: 236.588 ml for the US customary cup, 284.13 ml for the UK imperial cup, and exactly 250 ml for the metric cup used in Australia and New Zealand. These are fixed volumetric standards, not empirically measured values, so they do not require the same ingredient-density verification as our weight-based converters. Calculator results keep practical decimal precision where useful, while reference tables round to kitchen-friendly whole milliliters. We periodically review this page to ensure regional standard information stays current and clearly presented; the visible review signal remains Last updated: July 2026.