Convert Water from Cup to Millilitres
How many millilitres is 1 cup of water?
1 cup of water (H2O) is 250 millilitres. 2 cups of water is 500 millilitres. 1/2 cup of water is 125 millilitres. 1/4 cup (0.25 cup) of water is 62.5 millilitres. Use the converter below for any amount.
- These figures use the metric cup (250 ml). A US cup is slightly smaller at 240 ml, so it holds a little less.
- Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
No measuring cups? The tool below gets you close, and a measuring cup set keeps every batch the same.
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250 MillilitresWater Calculators & Baking Tools
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Common Water Conversions
Here are the most common water conversions from cups to millilitres.
| Cups | Millilitres |
|---|---|
| 0.25 cups | 62.5 ml |
| 0.5 cups | 125 ml |
| 0.75 cups | 187.5 ml |
| 1 cup | 250 ml |
| 1.25 cups | 312.5 ml |
| 1.5 cups | 375 ml |
| 2 cups | 500 ml |
| 2.5 cups | 625 ml |
| 3 cups | 750 ml |
This is a volume conversion, so the result is the same for every ingredient. Use the cups to millilitres volume converter to switch between cups, tablespoons, teaspoons, and millilitres without weighing.
Frequently Asked Questions
- What is 1 cup of water in millilitres?
- 1 cup of water is 250 millilitres. The ratio is fixed, so 2 cups of water is 500 millilitres and 0.5 cups is 125 millilitres. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the water converter
- How many millilitres is 1.5 cups of water?
- 1.5 cups of water is 375 millilitres. The ratio is fixed, so 1 cup of water is 250 millilitres and 2 cups is 500 millilitres. Type any other amount into the converter above for the exact figure, or use the chart above for the common ones.
- What is 2 cups of water in millilitres?
- 2 cups of water is 500 millilitres. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 cup of water is 250 millilitres, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact millilitres reading.
- How many cups of water is 250 millilitres?
- 250 millilitres of water is 1 cup. The conversion works the same in reverse, so you can switch between millilitres and cups without changing the result. This helps when a recipe lists cups but you would rather weigh or measure in millilitres. The converter above and the chart above cover both directions for any amount.
- How much is 1 cup of H2O in millilitres?
- H2O is another name for water, so 1 cup of H2O is 250 millilitres, exactly the same as water. The figure does not change with the name: 2 cups is 500 millilitres and 0.5 cups is 125 millilitres. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.