20 grams of sesame seeds is a small portion that fits easily into a kitchen measure. You can visualize this amount as a loose pile about the size of a ping-pong ball.

In kitchen measures
2.25 tablespoons
6.76 tsp · 2.25 tbsp · 0.141 cups
about the size of a ping-pong ball
Density estimated by AI from typical values. Sesame seeds typically ranges 0.55–0.65 g/mL depending on how it's packed. A firmly packed scoop weighs more.