An ice cream scoop typically holds about 1/4 to 1/3 cup of ice cream. However, the exact capacity can vary depending on the design and size of the scoop. Some scoops are larger and can hold up to 1/2 cup or more, while others are smaller and hold around 1/4 cup. It's a good idea to check the manufacturer's specifications or markings on the scoop for its precise capacity.