100 grams of dried beans is a modest portion that fits easily in the palm of your hand. It is about the size of a tennis ball when poured into a loose pile.

In kitchen measures
8.45 tablespoons
25.4 tsp · 8.45 tbsp · 0.528 cups
about the size of a tennis ball
Dried beans typically ranges 0.72–0.86 g/mL depending on how it's packed. A firmly packed scoop weighs more.