Amount of salt from volume of: 1 teaspoon ( tsp ), Equals to weight: ~ 5.69 grams ( 5.687 50 g ). Fraction: 5 69/100 gram ( 5 86/125 g ). Amount of salt from the weight of: 1 gram ( g ) = 1000 mg ( milligrams ), Equals to volume: ~ 0.18 teaspoon ( 0.175 824 175 ...