Quick Answer: 1 US cup = 240 milliliters (ml). This is the standard measurement used in US recipes. In Australia and Canada, 1 cup = 250ml. See the full breakdown and conversion chart below.
How Many ml in a Cup — Conversion Chart
Use this complete ml to cups conversion chart for every amount you need in cooking and baking. Also see our guide on how many cups in a liter for larger liquid conversions.
| Cups | US Milliliters (ml) | Metric ml (Australia) | Fluid Ounces |
|---|---|---|---|
| 1/8 cup | 30 ml | 31.25 ml | 1 fl oz |
| 1/4 cup | 60 ml | 62.5 ml | 2 fl oz |
| 1/3 cup | 80 ml | 83 ml | 2.7 fl oz |
| 1/2 cup | 120 ml | 125 ml | 4 fl oz |
| 2/3 cup | 160 ml | 167 ml | 5.3 fl oz |
| 3/4 cup | 180 ml | 188 ml | 6 fl oz |
| 1 cup | 240 ml | 250 ml | 8 fl oz |
| 1.5 cups | 360 ml | 375 ml | 12 fl oz |
| 2 cups | 480 ml | 500 ml | 16 fl oz |
| 3 cups | 720 ml | 750 ml | 24 fl oz |
| 4 cups | 960 ml | 1000 ml | 32 fl oz |
How Many ml in Half a Cup?
There are 120ml in half a cup (1/2 cup) using the US standard. In Australian and Canadian recipes, 1/2 cup = 125ml. This is one of the most commonly needed measurements in both cooking and baking. If a recipe calls for 120ml of liquid and you are measuring with cups, use exactly 1/2 cup.
How Many ml in a Quarter Cup?
There are 60ml in a quarter cup (1/4 cup) using US measurements. This equals 4 tablespoons or 12 teaspoons. For small ingredient amounts in baking, 60ml is a very common measurement for oil, milk, water, and liquid sweeteners. See our guide on how many tablespoons in a cup for more tablespoon conversions.
US Cup vs Metric Cup vs UK Cup — ml Difference
This is the most important thing to check when using international recipes. A cup is NOT the same size in every country:
| Country | 1 Cup in ml | Used In |
|---|---|---|
| United States | 240 ml | US recipes, most online recipes |
| Australia | 250 ml | Australian cookbooks |
| Canada | 250 ml | Canadian recipes |
| United Kingdom (old) | 284 ml | Older UK imperial recipes |
| Japan | 200 ml | Japanese recipes |
| Metric (International) | 250 ml | International standard |
Key rule: Most recipes you find online use the US cup (240ml). If you are unsure, assume 240ml per cup. The difference between 240ml and 250ml is small but matters in precise baking.
ml to Cups Conversion — Reverse Chart
| Milliliters (ml) | US Cups | Tablespoons | Teaspoons |
|---|---|---|---|
| 15 ml | 1/16 cup | 1 tablespoon | 3 teaspoons |
| 30 ml | 1/8 cup | 2 tablespoons | 6 teaspoons |
| 60 ml | 1/4 cup | 4 tablespoons | 12 teaspoons |
| 80 ml | 1/3 cup | 5 tbsp + 1 tsp | 16 teaspoons |
| 120 ml | 1/2 cup | 8 tablespoons | 24 teaspoons |
| 160 ml | 2/3 cup | 10 tbsp + 2 tsp | 32 teaspoons |
| 180 ml | 3/4 cup | 12 tablespoons | 36 teaspoons |
| 240 ml | 1 cup | 16 tablespoons | 48 teaspoons |
| 480 ml | 2 cups | 32 tablespoons | 96 teaspoons |
| 720 ml | 3 cups | 48 tablespoons | 144 teaspoons |
| 960 ml | 4 cups | 64 tablespoons | 192 teaspoons |
| 1000 ml (1 liter) | 4.226 cups | 67 tablespoons | 202 teaspoons |
How Many ml in a Cup of Water?
There are 240ml in 1 US cup of water. Water has a density of 1g/ml, so 240ml of water also weighs exactly 240 grams. This makes water the simplest ingredient to convert — the ml, grams and cup measurements all align perfectly.
How Many ml in a Cup of Milk?
There are 240ml in 1 US cup of milk. Since milk has a very similar density to water, the volume conversion is the same. One cup of whole milk weighs approximately 245 grams — slightly more than water due to fat and protein content, but the ml measurement remains 240ml.
Common Recipe Amounts — ml to Cups Quick Reference
| Recipe Says | In 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 |
| 150 ml | Just over 1/2 cup | 10 tablespoons |
| 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 | 2 cups + 1 tbsp | Just over 2 cups |
The Simple Formula to Remember
Easy Formula:
✅ Cups × 240 = ml (US)
✅ ml ÷ 240 = Cups (US)
Example: 3/4 cup × 240 = 180ml
Example: 360ml ÷ 240 = 1.5 cups
Frequently Asked Questions
Is 250ml equal to 1 cup?
Almost — but not exactly for US measurements. 250ml = 1 metric cup (Australia, Canada). In the US, 1 cup = 240ml. So 250ml is slightly more than 1 US cup — about 1 cup plus 2 teaspoons extra.
How many ml is 2 cups?
2 US cups = 480ml. This equals 1 pint or approximately half a liter. For more large-volume conversions see our guide on how many cups in a liter.
How many ml is 3/4 cup?
3/4 cup = 180ml in US measurements. This is a very common baking measurement. It equals 12 tablespoons or 36 teaspoons.
How many ml is 1/3 cup?
1/3 cup = approximately 80ml (79ml exact). This equals 5 tablespoons plus 1 teaspoon. For small precise amounts in baking, use a kitchen scale rather than cups for best results.
How many ml is 1/4 cup?
1/4 cup = 60ml exactly in US measurements. This is 4 tablespoons or 12 teaspoons. It is one of the most precise and easy cup measurements to work with.
How many ml in a cup of flour?
By volume, 1 cup of flour = 240ml. However flour is better measured by weight. 1 cup of all-purpose flour weighs 120–125 grams. Read our complete guide on 1 cup of flour in grams for all flour types.
📌 Summary — How Many ml in a Cup?
• 1 US cup = 240 ml
• 1 metric cup (Australia/Canada) = 250 ml
• 1/2 cup = 120 ml
• 1/4 cup = 60 ml
• 3/4 cup = 180 ml
• Formula: Cups × 240 = ml
Related: Tablespoons in a cup · Teaspoons in a tablespoon · Cups in a liter
