About how many grams of flour in a handful

100 grams to 150 grams. According to the size of an average person's hand, a handful of flour is 120 grams, but it varies according to the size of an individual's hand, and 100 grams to 150 grams are available. Flour, a powdered substance ground from wheat, can be categorized into high-gluten flour, medium-gluten flour, low-gluten flour and gluten-free flour according to the amount of protein content in the flour.