Milliliters to Cups converter

Quick reference

Milliliters	Cups
1	0.004227
2	0.008454
5	0.021134
10	0.042268
20	0.084535
25	0.105669
50	0.211338
100	0.422675
250	1.056688
500	2.113376
1,000	4.226753

About volume units

Cooking measures make volume the messiest category: a US cup is 8 fluid ounces (236.6 ml), three teaspoons make a tablespoon, sixteen tablespoons make a cup, and the US gallon (3.785 liters) is smaller than the old imperial gallon (4.546 liters) still implied in some British recipes. Metric kitchens simply use milliliters. When a recipe crosses the Atlantic, converting by weight is more accurate, but for liquids these volume conversions are exact by definition.

More volume conversions

Cups → Milliliters Liters → Gallons Gallons → Liters Milliliters → Fluid Ounces Cups → Milliliters Tablespoons → Milliliters Liters → Milliliters Milliliters → Liters All converters

Frequently asked questions

What is the exact formula for Milliliters to Cups?

Multiply the Milliliters value by 0.00422675. This comes from the exact unit definitions, not a rounded approximation.

Is this conversion exact?

The underlying ratio is exact where a legal definition exists (for example, 1 inch = 25.4 mm exactly). Displayed results are rounded to six decimal places for readability.

Can I convert Cups back to Milliliters?

Yes. Use the reverse converter linked below, or just swap which field you type into: the live converter recalculates either direction.