⚠️ Here is what almost nobody tells you: the “cup” in your recipe might not match the cup in your kitchen. A US cup, an Australian cup, and an old UK cup are three different sizes. Follow the wrong one and your cake batter, sauce, or bread dough is already off before you turn on the oven. This guide fixes that in seconds.
1 US cup = 240 ml. 1 metric cup (Australia, Canada) = 250 ml. 1 UK imperial cup = 284 ml. Most online recipes use the US cup, so when in doubt, use 240 ml. Use the complete charts below to convert any cup amount to millilitres instantly.
Converting cups to millilitres is one of the most searched kitchen questions in the world — because recipes travel across borders but measuring cups do not. Whether you are a home cook following an American food blog, a baker working from an Australian cookbook, a culinary student, or a barista measuring liquids, this is the most complete and accurate ml-in-a-cup guide available. Every value is verified against official measurement standards.
How Many ml in a Cup — By Country
| Cup Type | Millilitres | Fluid Ounces | Used In |
|---|---|---|---|
| US Cup | 240 ml | 8 fl oz | USA, most online recipes and food blogs |
| Metric Cup | 250 ml | 8.45 fl oz | Australia, Canada, New Zealand, South Africa |
| UK Imperial Cup | 284 ml | 10 fl oz | Older British recipes (pre-1970s) |
| Japanese Cup | 200 ml | 6.76 fl oz | Japanese recipes and rice cookers |
| Latin American Cup | 250 ml | 8.45 fl oz | Mexico, most of South America |
⚠️ The rule that saves your recipe: If a recipe does not state which cup it uses, assume the US cup (240 ml). Over 90% of English-language recipes online use it. Only switch to 250 ml if the recipe is clearly Australian, Canadian, or European.
Cups to ml — Complete Conversion Chart (US Standard)
| Cups | US ml (240) | Metric ml (250) | Fluid Oz | Tablespoons |
|---|---|---|---|---|
| 1/8 cup | 30 ml | 31 ml | 1 fl oz | 2 tbsp |
| 1/4 cup | 60 ml | 63 ml | 2 fl oz | 4 tbsp |
| 1/3 cup | 80 ml | 83 ml | 2.7 fl oz | 5 tbsp + 1 tsp |
| 1/2 cup | 120 ml | 125 ml | 4 fl oz | 8 tbsp |
| 2/3 cup | 160 ml | 167 ml | 5.4 fl oz | 10 tbsp + 2 tsp |
| 3/4 cup | 180 ml | 188 ml | 6 fl oz | 12 tbsp |
| 7/8 cup | 210 ml | 219 ml | 7 fl oz | 14 tbsp |
| 1 cup | 240 ml | 250 ml | 8 fl oz | 16 tbsp |
| 1.25 cups | 300 ml | 313 ml | 10 fl oz | 20 tbsp |
| 1.5 cups | 360 ml | 375 ml | 12 fl oz | 24 tbsp |
| 2 cups | 480 ml | 500 ml | 16 fl oz | 32 tbsp |
| 2.5 cups | 600 ml | 625 ml | 20 fl oz | 40 tbsp |
| 3 cups | 720 ml | 750 ml | 24 fl oz | 48 tbsp |
| 4 cups | 960 ml | 1000 ml | 32 fl oz | 64 tbsp |
Most Searched ml Amounts — Instant Answers
These are the exact amounts people look up most. If you came here for one specific number, here it is.
| Recipe Says | In US Cups | Easy Measurement |
|---|---|---|
| 50 ml | Just under 1/4 cup | 3 tbsp + 1 tsp |
| 100 ml | Just under 1/2 cup | 6 tbsp + 2 tsp |
| 125 ml | Just over 1/2 cup | 1/2 cup + 1 tsp |
| 150 ml | About 2/3 cup | 10 tbsp |
| 200 ml | Just under 1 cup | 13 tbsp + 1 tsp |
| 250 ml | Just over 1 cup | 1 cup + 1 tbsp |
| 300 ml | 1 and 1/4 cups | 1 cup + 4 tbsp |
| 400 ml | 1 and 2/3 cups | 1 cup + 10 tbsp |
| 500 ml | Just over 2 cups | 2 cups + 1 tbsp |
| 750 ml | About 3 cups | 3 cups + 2 tbsp |
| 1000 ml (1 litre) | 4.23 cups | 4 cups + 3 tbsp |
ml to Cups — Reverse Conversion Chart
| Millilitres | US Cups | Tablespoons | Teaspoons |
|---|---|---|---|
| 15 ml | 1/16 cup | 1 tbsp | 3 tsp |
| 30 ml | 1/8 cup | 2 tbsp | 6 tsp |
| 60 ml | 1/4 cup | 4 tbsp | 12 tsp |
| 80 ml | 1/3 cup | 5 tbsp + 1 tsp | 16 tsp |
| 120 ml | 1/2 cup | 8 tbsp | 24 tsp |
| 160 ml | 2/3 cup | 10 tbsp + 2 tsp | 32 tsp |
| 180 ml | 3/4 cup | 12 tbsp | 36 tsp |
| 240 ml | 1 cup | 16 tbsp | 48 tsp |
| 480 ml | 2 cups | 32 tbsp | 96 tsp |
| 720 ml | 3 cups | 48 tbsp | 144 tsp |
| 960 ml | 4 cups | 64 tbsp | 192 tsp |
| 1000 ml | 4.23 cups | 67 tbsp | 202 tsp |
US Cup vs Metric Cup — The Difference That Ruins Baking
The gap between a US cup (240 ml) and a metric cup (250 ml) is only 10 ml per cup. For soups and stews this is harmless. But in baking — where the ratio of wet to dry ingredients controls the whole result — it adds up fast.
| Cup Amount | US Cup | Metric Cup | Difference |
|---|---|---|---|
| 1 cup | 240 ml | 250 ml | 10 ml |
| 2 cups | 480 ml | 500 ml | 20 ml |
| 3 cups | 720 ml | 750 ml | 30 ml |
| 4 cups | 960 ml | 1000 ml | 40 ml |
At 4 cups, the difference is 40 ml — nearly 3 tablespoons of extra liquid. In a cake batter that can be the difference between a light crumb and a dense, sunken middle. This is why professional bakers weigh ingredients in grams instead. See our guide on cups to grams for weight-based accuracy.
How Many ml in a Cup of Water, Milk, Oil and More
By volume, 1 US cup of any liquid = 240 ml. But the weight changes with each liquid’s density — useful when a recipe mixes ml and grams.
| Liquid | 1 Cup Volume | Weight | Kitchen Note |
|---|---|---|---|
| Water | 240 ml | 240 g | 1 ml = 1 g exactly |
| Whole milk | 240 ml | 245 g | Slightly heavier than water |
| Heavy cream | 240 ml | 238 g | Almost identical to water |
| Vegetable oil | 240 ml | 218 g | Lighter than water |
| Olive oil | 240 ml | 216 g | Lighter than water |
| Honey | 240 ml | 340 g | Much heavier — always weigh |
| Maple syrup | 240 ml | 322 g | Heavier than water |
| Coconut milk | 240 ml | 240 g | Same as water by volume |
The 4 Biggest ml-to-Cup Measuring Mistakes
| Mistake | What Goes Wrong | The Fix |
|---|---|---|
| Using a coffee mug as a cup | Mugs hold 200-350 ml — not a standard 240 ml cup | Always use a proper measuring cup |
| Reading the jug from above | Parallax error adds 5-10 ml per reading | Read at eye level on a flat surface |
| Assuming 250 ml = 1 cup everywhere | True only for metric cups; US cup is 240 ml | Check the recipe’s country of origin |
| Measuring under 30 ml in a big jug | Markings too far apart for small amounts | Use spoons: 5 ml = 1 tsp, 15 ml = 1 tbsp |
That second mistake — reading the jug from above — is more common and more costly than most cooks realise. We break down exactly why it happens, and the eye-level fix, in our guide on why your liquid measuring cup is inaccurate.
Pro Kitchen Hacks — ml Shortcuts Chefs Use
- The water-weight trick: For water and milk, ml and grams are the same (1 ml = 1 g). If your scale shows grams and the recipe says 240 ml water, just weigh 240 g. No jug needed.
- The tablespoon bridge: No measuring cup? 1 US cup = 16 tablespoons. So 1/2 cup = 8 tbsp, 1/4 cup = 4 tbsp. Works for any liquid.
- The wine bottle reference: A standard 750 ml wine bottle = almost exactly 3 US cups. A handy mental anchor when scaling stocks and sauces.
- The espresso standard: A single espresso shot = 30 ml = 2 tbsp = 1/8 cup. Useful for coffee-flavoured baking.
- The 5 ml rule: Medicine and kitchen teaspoons are both exactly 5 ml. A medical dosing spoon works perfectly for measuring small recipe amounts.
The Simple Formula — Convert Any Cup to ml
Cups to ml: multiply cups × 240 (US) or × 250 (metric)
Example: 3/4 cup × 240 = 180 ml
ml to Cups: divide ml ÷ 240 (US)
Example: 360 ml ÷ 240 = 1.5 cups
Frequently Asked Questions
How many ml in a cup?
1 US cup = 240 ml. 1 metric cup (Australia, Canada) = 250 ml. 1 UK imperial cup = 284 ml. Most online recipes use the US cup, so when unsure, use 240 ml.
Is 250 ml equal to 1 cup?
Almost — but not for US recipes. 250 ml = 1 metric cup (Australia, Canada). In the US, 1 cup = 240 ml. So 250 ml is slightly more than 1 US cup — about 1 cup plus 2 teaspoons.
How many ml is 1/2 cup?
1/2 cup = 120 ml (US) or 125 ml (metric). This equals 8 tablespoons. For the full tablespoon breakdown see our guide on how many tablespoons in a cup.
How many ml is 3/4 cup?
3/4 cup = 180 ml in US measurements. This equals 12 tablespoons or 6 fluid ounces. In metric cups, 3/4 cup = 188 ml.
How many ml is 1/3 cup?
1/3 cup = 80 ml (79 ml exact). This equals approximately 5 tablespoons and 1 teaspoon. For small precise amounts, a kitchen scale beats cups. See our guide on ml to cups.
Is a coffee mug the same as a measuring cup?
No. A coffee mug holds 200-350 ml depending on size, while a measuring cup is a standard 240 ml. Always use a proper measuring cup for recipes — a mug gives inaccurate results and is a common cause of failed bakes.
📌 Summary — ml in a Cup
• 1 US cup = 240 ml
• 1 metric cup (AU/CA) = 250 ml
• 1 UK imperial cup = 284 ml
• 1/2 cup = 120 ml
• 1/4 cup = 60 ml
• 1/3 cup = 80 ml
• 3/4 cup = 180 ml
• 2 cups = 480 ml
• Formula: Cups × 240 = ml (US)
Related: ml to cups · Tablespoons in a cup · Cups in a liter · Cups to grams · Why your measuring cup is inaccurate · Ounces in a cup · Cups in a quart
