how many mg make a teaspoon of salt
However, the sodium content is different. The atomic weight of sodium is 23, and the atomic weight of table salt (sodium chloride, or NaCl) is 58.4, so the sodium content of a teaspoon of salt is (23/58.4) x 5,916 = 2,330 mg per teaspoon. 1 teaspoon is 5gm. It is also 5,000 mg. Using a density of 1.2 g/cc for standard table salt, since a teaspoon will hold 4.93 cc, one teaspoon contains 1.2 x 4.93 = 5.916 grams of salt, or 5,916 mg of salt per teaspoon.