50 grams of lentils (dry) is a standard serving size that measures 1.76 oz (50 g). When poured into a loose pile, it is 3.51 in (8.91 cm) wide and 1.18 in (3.01 cm) tall, which is about the size of a large egg.

In kitchen measures
4.23 tablespoons
12.7 tsp · 4.23 tbsp · 0.264 cups
about the size of a large egg
Lentils (dry) typically ranges 0.75–0.85 g/mL depending on how it's packed. A firmly packed scoop weighs more.