UnitConversion

Cups to Milliliters

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Formula

1 cup = 236.588 mL

Unit Relationship

This converter uses the U.S. customary cup. One U.S. customary cup is approximately 236.588 milliliters. Cup sizes are not universal, and some measurement systems use a 250 mL metric cup.

Worked Example

1.5 cups × 236.588 = 354.882 mL. For typical kitchen use, this can be rounded to about 354.9 mL or 355 mL.

Unit Definitions

Cups: A U.S. customary cup is equal to 8 U.S. fluid ounces and is approximately 236.588 milliliters.

Milliliters: A milliliter is one-thousandth of a liter and is commonly used for measuring small liquid volumes.

Practical Uses

Precision and Rounding

This converter uses 236.588 mL per U.S. customary cup. Rounding to the nearest milliliter is usually sufficient for everyday cooking, while baking or recipe scaling may benefit from retaining more precision until the final result.

Important Notes

Quick Reference

CupsMilliliters
1236.59
2473.18
4946.35

Cups to milliliters conversions are commonly used in cooking, baking, meal preparation, and converting US recipes to metric measurements.

Milliliters are widely used in Canada and most international recipes, while cups remain common in American cooking.

Frequently Asked Questions

Is 1 cup always 236.588 mL?

No. This converter uses the U.S. customary cup, which is approximately 236.588 mL. A metric cup is commonly 250 mL.

Can I use cups to mL for both liquid and dry ingredients?

Yes, when you are converting volume. Cups and milliliters both measure volume, but converting an ingredient to weight requires its density.

Why do some recipes show 1 cup as 240 mL?

Some recipe publishers round the U.S. customary cup to 240 mL as a practical kitchen approximation.

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