US teaspoon to Liter
tsp
l
Conversion History
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Quick Reference Table (US teaspoon to Liter)
| US teaspoon (tsp) | Liter (l) |
|---|---|
| 0.25 | 0.001232230398443925 |
| 0.5 | 0.00246446079688785 |
| 1 | 0.0049289215937757 |
| 2 | 0.0098578431875514 |
| 3 | 0.0147867647813271 |
| 6 | 0.0295735295626542 |
About US teaspoon (tsp)
The US teaspoon (tsp) is a unit of culinary volume equal to approximately 4.929 milliliters, one third of a US tablespoon. It is one of the smallest standard US customary volume units, used in cooking, baking, and medicine for small ingredient quantities. The US teaspoon differs from the metric teaspoon (exactly 5 mL) and the imperial teaspoon (about 5.92 mL). In medicine, 5 mL is the standardized dosing teaspoon.
A standard dose of liquid children's medicine is one 5 mL teaspoon. A recipe calling for 1 tsp of vanilla extract uses about 4.93 mL.
About Liter (l)
The liter (L) is the fundamental practical unit of volume in the metric system, defined as exactly one cubic decimeter (dm³) or 0.001 cubic meters. It is accepted for use with the SI but is not technically an SI base unit. The liter is the universal standard for beverages, fuel, and everyday liquid measurement in nearly all countries. One liter of pure water at 4°C has a mass of exactly one kilogram — a relationship that underpins many metric system conventions.
A standard 1-liter water bottle. A car petrol tank holds 40–70 liters. A human body contains roughly 5 liters of blood.
Etymology: From French "liter", derived from Old French "litron" (a unit of dry measure), from Medieval Latin "litra", from Greek "litra" (a monetary unit of weight in Sicily).
US teaspoon – Frequently Asked Questions
How many milliliters is a US teaspoon?
One US teaspoon equals approximately 4.929 mL, typically rounded to 5 mL in medicine and 4.93 mL in precise culinary conversions. The metric teaspoon used in Australia and Canada is exactly 5 mL.
What is the difference between a US teaspoon and an imperial teaspoon?
A US teaspoon is about 4.93 mL; an imperial (UK) teaspoon is about 5.92 mL — approximately 20% larger. This difference can affect recipes crossing US and UK sources, particularly for spices and leavening agents.
How many teaspoons are in a tablespoon?
In the US system, 3 teaspoons equal 1 tablespoon (3 × 4.929 mL = 14.787 mL). The metric equivalent is the same ratio: 3 × 5 mL = 15 mL tablespoon.
Is a medicine teaspoon the same as a cooking teaspoon?
Not exactly. Medicine dosing uses a standardized 5 mL teaspoon, while the US cooking teaspoon is about 4.93 mL. For medication accuracy, always use a calibrated oral syringe rather than a kitchen teaspoon, which can vary from 3 to 7 mL.
How many US teaspoons are in a cup?
There are 48 US teaspoons in one US cup: 1 cup = 16 tablespoons = 48 teaspoons.
Liter – Frequently Asked Questions
How many milliliters are in a liter?
There are exactly 1,000 milliliters in one liter. This is one of the most fundamental metric relationships: 1 L = 1,000 mL = 1 dm³ = 1,000 cm³.
Why does 1 liter of water weigh 1 kilogram?
The kilogram was originally defined as the mass of one liter of pure water at 4°C (the temperature at which water is densest). Although the kilogram is now defined by the Planck constant, the relationship still holds to very high precision.
What is the difference between "liter" and "liter"?
"Liter" is the standard spelling in British English and most of the world. "Liter" is the American English spelling. Both refer to the same unit. The SI formally prefers "liter" but accepts both spellings.
How many liters are in a gallon?
One US liquid gallon equals approximately 3.785 liters. One imperial (UK) gallon equals approximately 4.546 liters. Because the two gallons differ by about 20%, fuel economy figures in L/100km and MPG do not convert directly without specifying which gallon.
How much blood does the human body contain in liters?
An average adult has approximately 4.5–5.5 liters of blood, with 5 liters being the commonly cited figure. Blood volume varies with body size, fitness, and altitude.