1 cup of milk (whole) is a standard liquid serving size. It is about the size of a coffee mug and fills a glass 2.59 in (6.57 cm) wide.

In kitchen measures
16 tablespoons
48 tsp · 16 tbsp · 1 cups
about the size of a coffee mug
Milk (whole) typically ranges 1.02–1.04 g/mL depending on how it's packed. A firmly packed scoop weighs more.