1 cup of lentils (dry) is a standard kitchen measure that is about the size of a coffee mug. When poured into a loose pile, it measures 5.47 in (13.9 cm) wide and 1.84 in (4.68 cm) tall.

In kitchen measures
16 tablespoons
48 tsp · 16 tbsp · 1 cups
about the size of a coffee mug
Lentils (dry) typically ranges 0.75–0.85 g/mL depending on how it's packed. A firmly packed scoop weighs more.