In general, a “bowl” is not a standard unit of measurement, so it can be difficult to convert to cups. However, if we assume a typical serving bowl or cereal bowl, it may hold around 1.5 to 2 cups of liquid, depending on the size and shape.
If you are measuring a solid ingredient, such as flour or sugar, the amount of cups that a bowl can hold will depend on the density of the ingredient and how tightly it is packed into the bowl. It is always best to use a measuring cup or kitchen scale to accurately measure ingredients in recipes.