Convert US cups to milliliters
Enter any value to calculate the result instantly.
US cups to milliliters formula
Multiply US cups by approximately 236.5882365 milliliters. This value follows the US customary liquid cup.
Conversion table
Use these reference values for a quick comparison. The calculator above accepts positive, negative, decimal, and large values when they are meaningful for the quantity.
| US cups | milliliters |
|---|---|
| 0.25 cup | 59.14705912 mL |
| 0.5 cup | 118.2941182 mL |
| 1 cup | 236.5882365 mL |
| 1.5 cup | 354.8823547 mL |
| 2 cup | 473.176473 mL |
| 4 cup | 946.352946 mL |
How to use this converter
Enter the source measurement in the first field. CalUnit applies the displayed formula and updates the destination value immediately. You can use decimals and negative values, copy the result into your work, and compare it with the reference table. Keep the original unit beside the starting measurement so another reader can verify the calculation. For a different unit pair, open the complete cooking conversion guide or the multi-unit cooking converter.
When this conversion is useful
Cup sizes vary by region: metric and Australian cups are commonly 250 mL, while a US legal cup used for nutrition labeling is 240 mL. Check the recipe source.
Accuracy and rounding
This calculator uses the US customary cup. For baking, ingredient weight is often more reproducible than a volume cup measurement.
Standards references
CalUnit checks physical unit relationships against authoritative measurement references. See the NIST Guide to the SI conversion factors and the BIPM SI Brochure. Regional cooking measures and digital storage conventions are identified separately because their names can represent more than one definition.