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A teaspoon (tsp.) is a small spoon that can be used to stir a cup of tea or coffee, or as a tool for measuring volume. [1] [2] The size of teaspoons ranges from about 2.5 to 7.3mL (about 0·088 to 0·257 imperial fluid ounce or 0·085 to 0·247 US fluid ounce).
In Canada, a teaspoon is historically 1 ⁄ 6 imperial fluid ounce (4.74 mL) and a tablespoon is 1 ⁄ 2 imperial fl oz (14.21 mL). In both Britain and Canada, cooking utensils commonly come in 5 mL for teaspoons and 15 mL for tablespoons, hence why it is labelled as that on the chart.
The teaspoon, tablespoon, and cup are defined in terms of a fluid ounce as 1 ⁄ 6, 1 ⁄ 2, and 8 fluid ounces respectively. The fluid ounce derives its name originally from being the volume of one ounce avoirdupois of water, [21] but in the US it is defined as 1 ⁄ 128 of a US gallon. Consequently, a fluid ounce of water weighs about 1.041 ...
1 ⁄ 4 tsp [23] 1 ⁄ 32: 2 saltspoons = 1 coffeespoon coffeespoon (barspoon) bsp. [33] 1 ⁄ 2 tsp [23] 1 ⁄ 16: 2 coffeespoons = 1 teaspoon teaspoon (kitchen spoon, splash) tsp. or t. 1 fluid dram or 5 mL [10] most common size: 80 minims or 3 mL [17] 1 fluidrachm or 4 mL, [11] or 3.75 mL [18] (actual range: 4.6–5.5 mL [12]) 1 ⁄ 3 ...
The US fluid ounce is based on the US gallon, which in turn is based on the wine gallon of 231 cubic inches that was used in the United Kingdom prior to 1824. With the adoption of the international inch, the US fluid ounce became 1 ⁄ 128 gal × 231 in 3 /gal × (2.54 cm/in) 3 = 29.5735295625 mL exactly, or about 4% larger than the imperial unit.
Today's US teaspoon is equivalent to exactly 4.92892159375 ml, which is also 1 ⁄ 6 US fluid ounces, 1 + 1 ⁄ 3 US fluid drams, [5]: C-18 or 80 US minims. [5]: C-5 While pharmaceuticals are measured nowadays exclusively in metric units, fluid drams are still used to measure the capacity of pill containers.
60 minims or 'drops' or 1 ⁄ 8 fluid ounce (fl oz). See also drachm. Teaspoon: 5 mL: 80 minim or drops or 1 ⁄ 6 fl oz Tablespoon: 15 mL: 4 dram (240 minim or drops), 3 teaspoons, or 1 ⁄ 2 fl oz Jack: 71 mL: 1 ⁄ 2 Gill. This is not a traditional measure. Gill: 142 mL: 1 ⁄ 4 pint, or 1 ⁄ 32 gallon, in some dialects 1 ⁄ 2 pint ...
The unit of measurement varies by region: a United States liquid tablespoon is approximately 14·8mL (exactly 1 ⁄ 2 US fluid ounce; about 0·52 imperial fluid ounce), a British tablespoon is approximately 14·2mL (exactly 1 ⁄ 2 imperial fluid ounce; about 0·48 US fluid ounce), an international metric tablespoon is exactly 15mL (about 0·53 ...