An eighth of a teaspoon is usually regarded in culinary measurements as .5 milliliters and is called a pinch. The United States customary unit for a teaspoon is equivalent to a third of a tablespoon, 4.928921599375 milliliters, 1/6 of a U.S. fluid ounce or 1/48 of a U.S. cup.Know More
The term teaspoonful is often used as a unit of measurement in some countries. As a unit of measurement, the teaspoonful is mostly used to describe a particular amount used in cooking or for pharmaceutical preparations. It uses the abbreviation tsp or sometimes just t or tspn, always in lowercase letters, as the capital "T" is reserved for the tablespoon, the bigger unit of measurement also abbreviated as Tbsp.
Nutritional labeling laws in the United States define the teaspoon as being exactly 5 milliliters. It is also worth noting that the measurements using typical cutlery teaspoons can vary greatly, from 2.6 ml to 6 ml. When precision is important, such as when measuring medicine, it is a good idea to use measuring spoons instead of cutlery teaspoons.
There are also other definitions for teaspoon and these are level, rounded and heaping. A level teaspoon measurement is used for dry ingredients such as salt or pepper, and this means that the teaspoon is filled to level. A rounded teaspoon is about a scoop of a dry ingredient without leveling the spoon, and a heaping teaspoon means the maximum amount of dry ingredient that can be scooped without leveling.Learn more about Food Measurements
The number of teaspoons in 1 pound of a substance is the reciprocal of the substance's density in pounds per teaspoon. Because teaspoons are a measurement of volume and pounds are a measurement of mass, the number of teaspoons in a pound depends on the density of the substance in question.Full Answer >
When converting metric to United States customary units, 1 milliliter converts to 13/64 of a teaspoon, which is slightly less than 1/4 teaspoon. An exact conversion of 1/4 teaspoon to milliliters is 1.23 milliliters.Full Answer >
Since a teaspoon is a measurement of volume and a gram is a measurement of mass, it's not possible to convert from one unit to the other without knowing what substance is being used. When comparing teaspoons of different substances, the one that is denser will weigh more.Full Answer >
Teaspoons are a measurement of volume, and milligrams are a measurement of mass, so before one can calculate the teaspoons that are equivalent to 25 milligrams of a substance, one must know the density of that substance and divide 25 milligrams by the density in milligrams per teaspoon. Since milligrams per teaspoon is not a standard form of measurement for density, as milligrams are part of the metric system and teaspoons are part of the imperial system, some simple conversions must take place.Full Answer >