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Converting milliliters to cups

The U.S. customary cup is defined as exactly 236.588236 milliliters. This calculator converts between milliliters and U.S. cups in either direction using that standard factor, which is the definition used in most American cookbooks and nutrition labels.

The fluid ounce equivalent is also shown, since 1 U.S. cup equals 8 fluid ounces (about 29.5735 mL each). If you’re following a recipe from a country that uses the metric cup (250 mL, common in Australia and the UK), note that it differs slightly from the U.S. cup used here.

This tool is intended for general cooking and educational purposes; for baking where precision matters, weighing ingredients by mass is generally more accurate than converting by volume.

Last reviewed August 2026