One teaspoon of liquid equals 5 ml, meaning 1 ml equals one-fifth of a teaspoon. There are 1,000 ml in one liter of liquid.
One teaspoon is about equal to 5 milliliters. Technically a teaspoon is equal to about 4.93 milliliters, so 5 milliliters equals 1.01 teaspoons. However, for the nutritional labeling on food packaging in the United States, it is defined as exactly 5 milliliters.
There are three teaspoons in a tablespoon. That means that there are 1.5 teaspoons in a 1/2 tablespoon, and 1/3 of a tablespoon is a single teaspoon.
Ninety milliliters equals approximately 6 metric tablespoons. A single metric tablespoon is equal to 15 milliliters.
Since 3 teaspoons make 1 tablespoon, and 2 tablespoons make 1 fluid ounce, 1 ounce is equivalent to 6 teaspoons. Care must be taken to distinguish between measurements of weight and volume in this case, as dry ounces and liquid ounces measure weight and volume, respectively.
When measuring the volume of water, there is one milliliter in a gram. This may vary for other liquids, but the standard substance in volume-to-mass conversion is water.
The number of grams present in a teaspoon depends on what is being measured. Different substances provide different results.
According to the Southern Food Expert of About.com, one gram equals .21 teaspoons. Conversely, this means one teaspoon equals approximately 4.76 grams when you need to compare.
One CC, or cubic centimeter, is equal to one mL, or milliliter. Both terms are part of the metric system and are used as measurements of volume.
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.