45 grams of olive oil is equal to 1.59 oz (45 g) in weight and 3.31 tbsp (48.9 mL) in volume. It is about the size of a golf ball and fills a glass 1.53 in (3.88 cm) wide.

In kitchen measures
3.31 tablespoons
9.92 tsp · 3.31 tbsp · 0.207 cups
about the size of a golf ball
Olive oil typically ranges 0.9–0.93 g/mL depending on how it's packed. A firmly packed scoop weighs more.