Teaspoon
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Definition
A cooking volume unit. The US teaspoon equals approximately 4.929 ml.
Explanation
One US teaspoon = 1/3 tablespoon = 1/48 cup. The metric teaspoon is exactly 5 ml.
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A thorough reference for every major volume unit—metric, US customary, imperial, and culinary—including exact conversion factors, US vs UK differences, and practical cooking and industrial examples.
Cooking Measurement Units: Cups, Tablespoons, Grams, and MoreUS cups, metric cups, tablespoons, fluid ounces, and grams — a complete guide to cooking measurements and why weight beats volume for baking.
RELATED TERMS
Cup (Measurement)
A cooking volume unit. The US cup equals 236.588 ml; the metric cup is 250 ml.
Tablespoon
A cooking volume unit. The US tablespoon equals approximately 14.787 ml.
Fluid Ounce
A fluid ounce is a unit of liquid volume, with the US fluid ounce equal to 29.5735 mL and the imperial (UK) fluid ounce equal to 28.4131 mL.
Dash & Pinch
A dash is an informal culinary measure of approximately 1/8 teaspoon (0.6 mL), and a pinch is approximately 1/16 teaspoon (0.3 mL).
Weight vs Volume in Cooking
Weight measurement in cooking uses mass units (grams, ounces) rather than volume units (cups, tablespoons) to specify ingredient amounts.