how many mg teaspoon
Note or record the weight of the material in milligrams. This is what a teaspoon of a given substance will weigh in milligrams. Use the milligram weight of one teaspoon of the substance to convert other teaspoon-measured amounts into milligrams. Some common conversions : 1 teaspoon (tsp) of salt = 6 grams (g) or 6000 milligrams (mg) 1 tsp sugar = 4.2g or 4200mg.