One teaspoon of vanilla extract is a small amount that measures 0.174 oz (4.93 g). To picture its size, it is about half the size of a cherry and fills a glass 0.712 in (1.81 cm) wide.

In kitchen measures
1 teaspoons
1 tsp · 0.333 tbsp · 0.021 cups
about half the size of a cherry
Density estimated by AI from typical values. Vanilla extract typically ranges 0.95–1.05 g/mL depending on how it's packed. A firmly packed scoop weighs more.