Ml to Cups Converter — Convert Milliliters to cups
Convert milliliters to cups with the exact factor, a common-values table, and the formula shown.
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Ml to Cups Converter
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Milliliters to Cups — the Quick Answer
One US cup equals exactly 236.5882365 ml (commonly rounded to 236.588 ml or 236.6 ml). That means 1 ml equals 0.00422675 cups, or equivalently, 100 ml equals about 0.4227 cups. To convert milliliters to US cups, divide by 236.588. To go the other way (cups to milliliters), multiply by 236.588.
Nutrition-label cup vs. legal cup:You will sometimes see the conversion stated as 1 cup = 240 ml. This is the FDA’s nutrition-labeling convention, not the legally defined US customary cup. The FDA historically used 240 ml as the reference volume for beverage serving sizes on Nutrition Facts panels because it is a rounder number and closer to how people actually fill a drinking glass. The difference is 3.412 ml — about ⅔ of a teaspoon — and is irrelevant for home cooking but matters if you are cross-checking calories-per-cup on a food label against a measured volume. This converter uses the exact NIST-defined value of 236.588 ml = 1 US cup throughout.
The Milliliters-to-Cups Formula
Milliliters → US Cups
cups = ml ÷ 236.5882365exact inverse: ml = cups × 236.5882365
The factor 236.5882365 ml/cup is derived from the US gallon definition. One US gallon = 231 cubic inches = 3,785.411784 ml exactly. One gallon = 16 cups. Therefore 1 cup = 3,785.411784 ÷ 16 = 236.5882365 ml. This is not a rounded value — it is exact given the defined inch (25.4 mm) and defined gallon (231 in³). For 500 ml: 500 ÷ 236.588 = 2.113 cups.
Source:NIST Handbook 44 — Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices· National Institute of Standards and Technology
Practical rule of thumb: 1 cup ≈ 240 mlis accurate to within 1.4% and works fine for scaling soup recipes or checking whether a container is large enough. But for baking — where hydration ratios directly affect gluten development and rise — the exact value of 236.588 ml matters. A 1.4% error on a 4-cup (946 ml) batter is 13 ml of excess water, which can change the consistency of a delicate custard or quick-bread batter noticeably.
Common Milliliter-to-Cup Values
The table below covers milliliter volumes most commonly encountered when converting international recipes, reading nutrition labels, or scaling from metric measuring jugs to US measuring cups. All cup values use the exact 236.588 ml factor.
Factor: 1 US cup = 236.588 ml (exact: 236.5882365 ml)
Common milliliters to US cups conversions for cooking and baking
| Scenario | Milliliters | US Cups | Cooking context |
|---|---|---|---|
| 50 ml | 0.211 cups (3 tbsp + 1 tsp) | small sauce reduction | |
| 100 ml | 0.423 cups (about ⅓ cup + 1 tbsp) | European yogurt portion | |
| 118 ml | ½ cup exactly | US ½-cup measure | |
| 200 ml | 0.845 cups (just under 1 cup) | standard European serving glass | |
| 236.6 mlRecommended | 1 cup exactly | US 1-cup measure / 8 fl oz | |
| 240 ml | 1.014 cups (≈1 cup + 1 tsp) | FDA label cup; 3.4 ml more than a legal cup | |
| 250 ml | 1.057 cups (1 cup + 1 tbsp) | metric cup (AU/NZ/CA recipes) | |
| 500 ml | 2.113 cups (2 cups + 1 tbsp + 1 tsp) | standard EU bottle half-liter | |
| 750 ml | 3.170 cups (3 cups + 2½ tbsp) | standard wine bottle | |
| 1,000 ml (1 liter) | 4.227 cups (4 cups + 3½ tbsp) | 1-liter metric measure |
The 250 ml 'metric cup' used in Australian, New Zealand, and Canadian recipes is larger than the US cup by 13.4 ml (about 1 US tablespoon). When a recipe from those countries says '1 cup,' measure 250 ml, not 236.6 ml.
Worked Examples
Example 1
Convert 300 ml of milk to US cups
- Volume
- 300 ml
- Factor
- 1 cup = 236.588 ml
Divide milliliters by the cup-in-ml value.
300 ÷ 236.588 = 1.2679Express as a cup fraction.
1.2679 cups = 1¼ cups + a small amountFind the remainder in tablespoons (1 cup = 16 tbsp).
0.2679 × 16 = 4.29 tbsp ≈ 4 tablespoons
300 ml = approximately 1¼ cups + 1 tablespoon (1 cup + 4 tbsp precisely). In practice: measure 1 cup and add 2 tablespoons for a close approximation (note: 1 cup + 2 tbsp = 266 ml, slightly under; 1 cup + 4 tbsp = 296 ml, very close to 300 ml).
When adapting a metric recipe to US cup measures, it is often more practical to convert to the nearest tablespoon rather than trying to hit an exact milliliter value with cup and tablespoon measures.
Example 2
An Australian recipe calls for 2 cups (500 ml) of flour — how many US cups?
- Australian cup
- 250 ml per cup (metric cup)
- Total volume
- 2 × 250 ml = 500 ml
- US cup
- 236.588 ml
First confirm the total volume in ml.
2 × 250 = 500 mlConvert to US cups.
500 ÷ 236.588 = 2.1134 US cupsExpress as a mixed cup measure.
2 cups + 0.1134 × 16 tbsp = 2 cups + 1.8 tbsp ≈ 2 cups + 2 tbsp
2 Australian cups (500 ml) = 2 US cups + 2 tablespoons. If you substitute exactly 2 US cups (473 ml) you are about 27 ml short — nearly 2 tablespoons of flour. That shortfall will make the batter slightly stiffer and can cause dryness in a loaf or cake.
This example shows why noting whether a recipe is Australian, New Zealand, or US is not pedantic — the 6% cup-size difference accumulates and affects the finished product, especially in baking where hydration ratios are critical.
How to Use This Converter
- Enter the volume in milliliters in the field above.
- The result shows the equivalent in US cups (and fractional cups) instantly, using the exact 236.588 ml/cup factor.
- Need the result in fluid ounces instead? Use the oz to ml converter in reverse, or the cups to ounces converter as a second step (1 cup = 8 fl oz, always exact).
Common Mistakes
- Using 240 ml as the cup when working with NIST-standard recipes. The 240 ml figure appears on FDA nutrition labels and in some cookbooks that adopted it for its round-number convenience. The NIST-defined US customary cup is 236.588 ml. For home cooking the 1.4% difference is negligible, but for recipe development, food-science writing, or cross-checking label nutrition math, always specify which convention you are using.
- Treating a metric cup (250 ml) as a US cup (236.6 ml).Australian, New Zealand, and some Canadian cookbooks standardize on the 250 ml metric cup. The difference is 13.4 ml — about 1 US tablespoon. One cup is forgivable; six cups of batter is an 80 ml (⅓ cup) error that will noticeably affect density and rise.
- Rounding ml to the nearest cup fraction without checking the remainder.500 ml is 2.113 cups, not 2 cups. Rounding down to 2 cups introduces a 27 ml shortfall — more than a tablespoon. When a recipe gives you a metric volume, convert it precisely and then round to the nearest tablespoon or quarter-cup, not the nearest whole cup.
- Assuming metric-cup recipes are the same as US-cup recipes on recipe sites.Recipe aggregators often pull from multiple countries without standardizing the cup definition. If the URL is .com.au, .co.nz, or the site is Taste.com.au, Donna Hay, or Countdown, use 250 ml per cup. If it is AllRecipes, Food Network, or NYT Cooking, use 236.6 ml per cup.
Background
Milliliters, Cups, and the Metric-Cup Divergence
The milliliter is a straightforward metric unit — one thousandth of a liter — and the liter itself has been defined since 1964 as exactly 1 cubic decimeter. Because the meter is defined (since 1983) in terms of the speed of light, the milliliter is ultimately anchored to a physical constant. It entered practical cooking use gradually as metrication spread through Europe, Australia, and Canada in the 1970s, replacing Imperial and customary measures in most of the world's kitchens [1].
The US cup, by contrast, is rooted in the colonial-era gallon. The 236.588 ml value traces directly to the decision of Congress in 1836 to standardize liquid measures on the Winchester wine gallon of 231 cubic inches. Dividing by 16 (cups per gallon) and converting via the defined inch (25.4 mm since 1959) gives the modern 236.588 ml value. The cup as a kitchen tool was popularized in the United States in the 1890s and codified in the NIST Handbook 44 as the legal standard for commercial measuring devices [1].
The metric cup of 250 ml is a deliberate round-number compromise adopted during the metrication drives of the 1970s. Australia formalized the 250 ml metric cup in 1970, followed by New Zealand and most of Canada. The choice of 250 ml (exactly ¼ liter) made it easier to think in decimal fractions: ½ metric cup = 125 ml, ¼ metric cup = 62.5 ml. By contrast, ½ US cup = 118.294 ml — a number no home cook wants to memorize. The practical trade-off was a 5.66% upward bump in every recipe's liquid and dry-volume measures for those countries, absorbed into a new generation of cookbooks and measuring equipment [2].
The FDA nutrition-label cup of 240 ml occupies a curious middle ground. It is neither the US legal cup (236.588 ml) nor the metric cup (250 ml). It was chosen as a pragmatic round number close to both — 240 ml = 8 × 30 ml, where 30 ml is the convenient approximation for 1 fl oz. When the FDA's nutrition labeling rules were written in the early 1990s, this made label math easier: 240 ml per cup, 30 ml per fl oz, 8 fl oz per cup. The FDA has revisited its serving-size rules several times since but the 240 ml convention appears in many food manufacturer databases and nutrition calculators, which is why you will see '1 cup = 240 ml' stated with authority in sources that are technically using the FDA convention, not the NIST standard [2].
- NIST Handbook 44, Appendix C — General Tables of Units of Measurement · National Institute of Standards and Technology · 2024
- FDA — Food Labeling: Serving Sizes of Foods That Can Reasonably Be Consumed at One Eating Occasion · U.S. Food and Drug Administration · 2016
Cooking Volume Terms
Quick reference
Milliliters, cups & metric cooking glossary
US Cup (legal)
Exactly 236.5882365 ml = 8 US fl oz = 16 tablespoons. The NIST-defined US customary cup for measuring devices.
- The US cup is defined via the US gallon (231 in³) and the international inch (25.4 mm). It is smaller than the metric cup (250 ml) by 13.4 ml — about 1 US tablespoon. Most American measuring cups and recipe sites use this definition.
Metric Cup (250 ml)
Exactly ¼ liter. The standard cup in Australia, New Zealand, and parts of Canada. 5.66% larger than the US cup.
- The 250 ml metric cup was adopted during 1970s metrication as a round-number replacement for the Imperial cup (284 ml). Recipes from Taste.com.au, Donna Hay, Cuisine NZ, and Canadian Living typically use 250 ml per cup. Substituting a US cup (236.6 ml) for a metric cup introduces a systematic shortfall of 13.4 ml per cup.
FDA Nutrition-Label Cup (240 ml)
The 240 ml reference used for beverage serving sizes on US Nutrition Facts labels. Not the legal cooking cup.
- The FDA chose 240 ml as a convenient round number (8 × 30 ml ≈ 8 fl oz) for labeling purposes. It is 3.412 ml larger than the legal US cup. Food manufacturers calculate 'calories per cup' using 240 ml; a true 1-cup measure (236.6 ml) has 1.4% fewer calories per serving than the label implies for most foods.
Milliliter (ml)
1/1,000 of a liter = 1 cubic centimeter. The SI small-volume unit, internationally unambiguous.
- The milliliter is the gold standard for international recipe sharing because it avoids the cup-definition ambiguity entirely. 1 ml = 1 cc = 1 cm³ exactly. At 4°C, 1 ml of pure water weighs exactly 1 gram, making ml and grams interchangeable for water (and approximately so for other aqueous solutions).
Tablespoon (US tbsp)
½ fl oz = 14.787 ml = 3 teaspoons. There are 16 US tablespoons in 1 US cup.
- The US tablespoon is the most useful sub-cup unit for expressing the remainder when a ml value does not land on an exact cup fraction. 100 ml = ⅓ cup + 1 tbsp + 1 tsp (approximately). UK tablespoons are 15 ml; Australian tablespoons are also 15 ml (not the same as the US 14.787 ml value, though the difference is small).
Liter (L)
Exactly 1,000 ml = 4.2268 US cups = 1.0567 US quarts. The standard metric large-volume unit.
- 1 liter = 1 cubic decimeter. The mismatch between a liter and a US quart (946.4 ml) has caused confusion in US bottled beverages: a 2-liter soda bottle is about 2.11 quarts (not 2 quarts even). EU food regulations denominate in liters; US regulations in fl oz and gallons for packaged beverages.
Deciliter (dl)
100 ml = 0.4227 cups. A unit common in Scandinavian and some Central European recipes.
- Scandinavian cookbooks (Swedish, Norwegian, Finnish, Danish) frequently use deciliters for both dry and liquid ingredients. 1 dl = 100 ml = about 6 tablespoons + 2 teaspoons in US measures. A recipe calling for '2 dl' means 200 ml ≈ ¾ cup + 1 tbsp.
Teaspoon (US tsp)
⅙ fl oz = 4.929 ml = 1/48 US cup. The smallest standard US cooking volume measure.
- A US teaspoon is 4.929 ml; an Australian/metric teaspoon is exactly 5 ml. The 0.07 ml difference is negligible for almost all cooking, but for pharmaceutical compounding, where teaspoon doses appear in patient instructions, always verify whether a metric or US teaspoon is intended.
Fluid Ounce (US fl oz)
1/8 of a US cup = 29.5735 ml. 1 US cup = exactly 8 fl oz.
- The US fluid ounce is the bridge unit between cups and milliliters. Knowing both conversion factors (1 cup = 8 fl oz = 236.6 ml) means you can chain conversions without a calculator: 4 fl oz = ½ cup = 118.3 ml; 12 fl oz = 1½ cups = 354.9 ml. The chain is exact because all three units are defined relationships.
Related Converters and Tools
For the inverse conversion — cups to milliliters — simply multiply your cup value by 236.588 ml, or use the cups to ounces converter paired with the oz to ml converter for a two-step path. For the full US customary chain including tablespoons, teaspoons, pints, and quarts, the all-in-one unit converter has every step. If you are scaling a recipe proportionally, the percentage calculator can compute the exact multiplier for any fraction of the original recipe.
Frequently Asked Questions
The most common questions we get about this calculator — each answer is kept under 60 words so you can scan.
What is the milliliters to cups conversion factor?
1 US cup = 236.588 ml. To convert, multiply your milliliters value by 0.00422675.What is 250 milliliters in cups?
250 milliliters = 1.06 cups. Multiply 250 by 0.00422675 to get the result.How do I convert cups back to milliliters?
Divide your cups value by 0.00422675 (or multiply by the reciprocal). The page shows the exact reverse rate.Is this conversion exact or rounded?
The factor itself is exact by international standard; only the displayed result is rounded for readability. Internally full precision is kept.Is the Ml to Cups converter free?
Yes — free, instant, no signup. All math runs in your browser; nothing is stored.