Teaspoon (tsp)
A US customary unit of volume equal to 1/3 of a tablespoon
The Teaspoon (tsp) is a unit of volume that developed alongside the needs of commerce, cooking, and chemistry. Volume measurement was crucial for trade in liquids like wine, oil, and grain, leading to a profusion of regional standards that varied even between neighboring towns. The metric system's liter and its multiples brought standardization to most of the world, though the US customary volume system of cups, pints, quarts, and gallons persists in American cooking and everyday use. The Teaspoon belongs to one of these traditions.
Accurate volume measurement is critical in engineering, science, commerce, and everyday life. Using the correct unit and applying conversions precisely prevents errors that can be costly or dangerous in professional applications.
Conversion Table
| Unit | Symbol | 1 tsp = |
|---|---|---|
| Liter | L | 0.00492892 L |
| Milliliter | mL | 4.92892 mL |
| Gallon (US) | gal | 0.00130208 gal |
| Fluid Ounce | fl oz | 0.166667 fl oz |
| Cup | cup | 0.0208333 cup |
| Tablespoon | tbsp | 0.333332 tbsp |
| Pint | pt | 0.0104167 pt |
| Quart | qt | 0.00520833 qt |
Conversions Involving Teaspoon
Liter → Teaspoon
L → tsp
Milliliter → Teaspoon
mL → tsp
Gallon (US) → Teaspoon
gal → tsp
Fluid Ounce → Teaspoon
fl oz → tsp
Cup → Teaspoon
cup → tsp
Tablespoon → Teaspoon
tbsp → tsp
Teaspoon → Liter
tsp → L
Teaspoon → Milliliter
tsp → mL
Teaspoon → Gallon (US)
tsp → gal
Teaspoon → Fluid Ounce
tsp → fl oz
Teaspoon → Cup
tsp → cup
Teaspoon → Tablespoon
tsp → tbsp
Teaspoon → Pint
tsp → pt
Teaspoon → Quart
tsp → qt
Pint → Teaspoon
pt → tsp
Quart → Teaspoon
qt → tsp
Common Uses of the Teaspoon
- •Cooking — measuring liquid ingredients in recipes
- •Fuel and fluid systems — sizing tanks, reservoirs, and pipelines
- •Chemistry — measuring solutions and reagents in laboratory procedures
- •Medicine — prescribing and administering liquid medications
- •Environmental science — measuring water discharge and rainfall volume
Did You Know?
The liter was originally defined in 1795 as the volume of one kilogram of water at 4°C — creating a convenient link between mass and volume for water. The Teaspoon is part of the broader volume measurement story that connects everyday cooking to industrial fluid handling.