50 grams of walnuts is a portion that weighs 1.76 oz (50 g) and has a volume of 7.51 tbsp (111 mL). When poured into a loose pile, it is about the size of a tennis ball.

In kitchen measures
7.51 tablespoons
22.5 tsp · 7.51 tbsp · 0.47 cups
about the size of a tennis ball
Density estimated by AI from typical values. Walnuts typically ranges 0.38–0.52 g/mL depending on how it's packed. A firmly packed scoop weighs more.