10 grams of creatine monohydrate is a common supplement serving that weighs 0.353 oz (10 g). When poured into a loose pile, it is 2.1 in (5.33 cm) wide and 0.881 in (2.24 cm) tall, which is about the size of a cherry tomato.

In kitchen measures
1.13 tablespoons
3.38 tsp · 1.13 tbsp · 0.07 cups
about the size of a cherry tomato
Creatine monohydrate typically ranges 0.55–0.7 g/mL depending on how it's packed. A firmly packed scoop weighs more.