Convert ml to teaspoon

Milliliter

定義
The milliliter (mL) is a metric volume unit widely used in science, medicine, and daily life. It equals 1 cubic centimeter (1 cm³), 0.001 L, or 1 × 10⁻⁶ m³.

起源
Derived from the liter (originally the French litre, itself from litron), the milliliter simply adopts the “milli-” prefix—one-thousandth of a liter. Early definitions of the liter once tied it to the mass of water, but modern standards define it strictly by cubic decimeters.

Uses Today
Milliliters measure small liquid volumes with precision: dosing medicines, dispensing lab reagents, filling travel-size containers, and marking nutritional labels. Instruments like pipettes, burettes, and graduated cylinders all rely on mL graduations.

ティースプーン

定義
A U.S. customary teaspoon (tsp US) is a small-volume culinary measure equal to 4.9289215938 mL. In nutrition labeling and many recipes, it’s rounded to 5 mL (the “metric teaspoon”).

起源
First standardized in the 18th-century apothecaries’ system, the teaspoon was originally 1 fluid dram—¼ of a tablespoon or ⅛ of a fluid ounce. Early English teacups and spoons were small when tea cost a premium; once imports rose in the 1700s, spoons grew to today’s ratio of ⅓ tablespoon.

Uses Today
Teaspoons remain a staple in recipes for measuring spices, extracts, and small amounts of liquid. They also serve in pharmacy for dosing syrups and suspensions. Beyond these contexts, metric units (mL, L) are preferred for general volume.

Milliliter → Teaspoon Conversion Table

変換方法

• 1 mL = 0.20288414 tsp US

• 1 tsp US = 4.9289215938 mL

例

コンバート 15 mL to teaspoons: