As a unit of measurement, a tablespoon is three times larger than a teaspoon. In the U.S., a tablespoon is equal to 0.5 fluid ounce, or 14.79 milliliters, while a teaspoon is equal to 0.17 fluid ounce, or 4.93 milliliters. In British Imperial measurements, a tablespoon is equal to 0.625 fluid ounce, or 17.76 milliliters, while a teaspoon is equal to 0.21 fluid ounce, or 5.92 milliliters.
Tablespoons and teaspoons are names for two of the different types of spoons that may appear in a table setting as well. A teaspoon is 5.5 to 6.25 inches long and is used in informal dining for stirring a hot beverage like coffee or tea, sipping soup or eating solid food. A tablespoon is larger, and it is used as a serving spoon or for eating out of a bowl.