6 fluid ounces of brewed coffee is a standard serving size. To visualize this amount, it is about the size of a tennis ball.

In kitchen measures
12 tablespoons
36 tsp · 12 tbsp · 0.75 cups
about the size of a tennis ball
Density estimated by AI from typical values. Brewed coffee typically ranges 0.99–1.01 g/mL depending on how it's packed. A firmly packed scoop weighs more.