How to Convert Cups to Milliliters

Cups are a familiar cooking measurement, while milliliters provide a metric volume measurement. The exact conversion depends on which cup standard the recipe uses.

US Cup to ML

One US customary cup is approximately 236.588 milliliters.

Milliliters = US Cups × 236.588

Common Examples

• 1 US cup ≈ 236.588 ml
• 2 US cups ≈ 473.176 ml
• 3 US cups ≈ 709.764 ml
• 4 US cups ≈ 946.352 ml

Different Cup Sizes

Not every recipe uses the same cup. A metric cup is commonly 250 ml, so a recipe that specifies metric cups can give a slightly different result from a US recipe.

Example

For 1.5 US cups, multiply 1.5 by 236.588 to get approximately 354.882 ml.

Best Practice for Baking

For recipes where precision matters, follow the recipe's stated measurement system and avoid switching between cup standards without checking the source.

Choosing the Cup Standard in a Recipe

If a recipe says “1 cup” without identifying the standard, its country of origin can provide a useful clue. Still, the safest option for precision is to use the recipe's stated measurement system or a weight measurement when one is provided.

For liquid ingredients, milliliters make international recipes easier to compare because the metric unit is fixed. If you are adapting a recipe, avoid switching between cup standards halfway through the instructions.

Quick Conversion Reference

US Cups	Milliliters
0.25	59.147
0.5	118.294
1	236.588
2	473.176
4	946.352

Frequently Asked Questions

How many ml are in 1 US cup?

Approximately 236.588 ml.

How many ml are in 2 cups?

Two US cups are approximately 473.176 ml.

Should I use ml or cups for baking?

Use whichever unit the original recipe specifies, and use a scale where the recipe provides weights.

Related Conversion Guides

• ML to Cups: Formula, Examples, and Cooking Conversion Guide
• KMH to MPH: Formula, Examples, and Quick Guide

When to Prefer Milliliters

Milliliters are especially convenient for international recipes because the unit does not change from one country to another. If you are adapting a recipe for a different kitchen, converting all liquid amounts to milliliters can reduce ambiguity. For dry ingredients, weight in grams can be even more consistent. Cup conversions remain useful, but they should be treated as a representation of the recipe's measurement system rather than a universal physical cup size.