50 grams of brown sugar (unpacked) is a common measurement for baking. It is about the size of a large egg.

In kitchen measures
5.2 tablespoons
15.6 tsp · 5.2 tbsp · 0.325 cups
about the size of a large egg
Density estimated by AI from typical values. Brown sugar (unpacked) typically ranges 0.58–0.72 g/mL depending on how it's packed. A firmly packed scoop weighs more.