How much space does this amount of salt occupy?

The volume is 0.13 tbsp (1.92 mL), which equals 0.39 teaspoons, 0.13 tablespoons, or 0.0081 cups.

What does the pile look like if poured out?

When poured into a loose pile, it is 1.13 in (2.86 cm) wide and 0.352 in (8.95 mm) tall.

The typical density is 1.3 g/mL, though it can range from 1.2 to 1.4 g/mL depending on packing.

2.5 grams of table salt (fine) is a small amount that measures 0.088 oz (2.5 g). You can picture this amount as being about the size of a marble.

In kitchen measures

0.39 teaspoons

0.39 tsp · 0.13 tbsp · 0.0081 cups

about the size of a marble

Weight: 0.088 oz (2.5 g)
Volume: 0.13 tbsp (1.92 mL)
Pile width: 1.13 in (2.86 cm)
Pile height: 0.352 in (8.95 mm)
Density: 1.3 g/mL

Table salt (fine) typically ranges 1.2–1.4 g/mL depending on how it's packed. A firmly packed scoop weighs more.

How much space does this amount of salt occupy?: The volume is 0.13 tbsp (1.92 mL), which equals 0.39 teaspoons, 0.13 tablespoons, or 0.0081 cups.
What does the pile look like if poured out?: When poured into a loose pile, it is 1.13 in (2.86 cm) wide and 0.352 in (8.95 mm) tall.
How does the density of this salt affect its size?: The typical density is 1.3 g/mL, though it can range from 1.2 to 1.4 g/mL depending on packing.