Normally you would just estimate by eye. Perhaps just stick the tip of the teaspoon into whatever it is that you want in the amount of a quarter of a teaspoon. Bear in mind that cooking measurements do not require the same degree of precision that you would need to conduct a scientific experiment. If you require more precision, you could take a full teaspoon, weigh it, and then divide that result by 4, to determine the weight of a quarter of a teaspoon.
1 Teaspoon is 2300 milligrams so a quarter would 575 milligrams roughly
Quarter Teaspoon.
That is 3/4 teaspoon.
1 teaspoon is 76 drops. 1/4 teaspoon is 19 drops.
one quarter
No it is not bad for you
Milligrams is a measure of mass, a quarter teaspoon is a measure of volume, the two forms of measurement cannot be interchanged without knowing the density of the substance, meaning you can't measure milligrams by a teaspoon or any fraction of a teaspoon.
1 clove = one teaspoon. 1/4 teaspoon = 1/2 clove.
a quarter
That is 1.25 ml.
That is 9.375.
There are 3 teaspoons in 1 tablespoon. So 1/4 of a tablespoon is 3/4 of a teaspoon.