This tablespoon has a capacity of about 1 tbsp.

A tablespoon is a type of spoon used for serving. Image File history File links Tablespoon. ... Image File history File links Tablespoon. ... A common silver spoon The English word spoon derives from Old English spōn, meaning a chip of wood or horn carved from a larger piece, in turn deriving from the Proto-Indo-European root *spe-, denoting a long piece of wood.1 // History In the Middle Ages in Europe...

It is also a measure of volume used in cooking. It has various values around the world, most of which are about 15 milliliters. It is abbreviated in English as T., tbs. or tbsp., and in German as EL. The word unit means any of several things: Unit of measurement or physical unit, a fundamental quantity of measurement in science or engineering. ... Volume, also called capacity, is a quantification of how much space an object occupies. ... The millilitre (ml or mL, also spelt milliliter) is a metric unit of volume that is equal to one thousandth of a litre. ...

The traditional U.S. interpretation of the tablespoon as a unit of volume was

1 U.S. tablespoon = ½ U.S. fl. oz. (14.8 mL)

1 U.S. tablespoon = 3 U.S. teaspoons

This was considered slightly inconvenient in the context of nutrition labeling, where metric units are used even in the United States. Therefore, U.S. federal law (21CFR101.9(b)(5)(viii)) now defines A fluid ounce is a unit of volume in both the Imperial system of units and the U.S. customary units system. ... The millilitre (spelled milliliter in American English and German) is a metric unit of volume that is equal to one thousandth of a litre. ... When used as a quantity, such as in a recipe, a teaspoon is the name of several units of measuring volume used primarily in cooking. ...

1 U.S. tablespoon = 15 mL

in line with the definition used in many other countries.

The traditional British tablespoon was never standardised, and could vary from ¹/₂ to ⁵/₈ Imperial fl. oz. (14.2 mL to 17.8 mL) This article is about post-1824 Imperial units, please see also English unit, U.S. customary unit or Avoirdupois. ...

Although technically a measure of liquid volume, when used for solids (ie tbsp butter), should be measured to the flattened level of the spoon (vs. a 'heaping tablespoon', which is as much as can be held in the spoon)

1 tablespoon = 15 ml (in Canada, New Zealand, UK)

1 tablespoon = 20 ml (in Australia)