One teaspoon of vegetable oil is a small amount of liquid that weighs 0.16 oz (4.53 g). 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. Vegetable oil typically ranges 0.91–0.93 g/mL depending on how it's packed. A firmly packed scoop weighs more.