20 grams of poppy seeds is a small amount that measures 0.705 oz (20 g). When poured into a loose pile, it is about the size of a ping-pong ball.

In kitchen measures
2.18 tablespoons
6.54 tsp · 2.18 tbsp · 0.136 cups
about the size of a ping-pong ball
Density estimated by AI from typical values. Poppy seeds typically ranges 0.55–0.7 g/mL depending on how it's packed. A firmly packed scoop weighs more.