1 cup is generally equal to 240 milliliters (ml) in the US customary system, which is a widely accepted standard for liquid measurements. The exact volume is 236.588 ml but it is typically rounded to 240 ml for convenience in cooking and recipes. For dry ingredients, the equivalent weight in grams varies depending on the ingredient (e.g., 1 cup of flour is about 120 grams, 1 cup of sugar is about 200 grams).
Summary:
- 1 US cup = 240 ml (rounded from 236.588 ml)
- 1 cup = 8 fluid ounces
- Conversion depends on ingredient for dry measurements (e.g., flour: ~120 grams, sugar: ~200 grams).
This is the standard used in most American recipes and measurements.
