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0.5 teaspoons of table salt (fine) is a small amount of seasoning that is about the size of a marble. When poured into a loose pile, it measures 1.23 in (3.11 cm) wide and 0.383 in (9.72 mm) tall.

In kitchen measures
0.5 teaspoons
0.5 tsp · 0.167 tbsp · 0.01 cups
about the size of a marble
Table salt (fine) typically ranges 1.2–1.4 g/mL depending on how it's packed. A firmly packed scoop weighs more.