Convert Teaspoon (US) to Milliliter (mL)
Category: Volume
1 tsp = 4.928922 ml
High-precision rounding: 6 decimals
How to convert teaspoon (us) to milliliter (ml)
Volume measures the space a substance occupies. SI uses cubic meters and liters; customary units like gallons, quarts, and pints persist in recipes, fuel, and containers. Accurate volume work often requires temperature and density considerations (e.g., for fuels).
This converter calculates Teaspoon (US) to Milliliter (mL) values by using the correct conversion rule for the Volume category. For linear units, standardized factors are used. For temperature, the calculator applies the proper formula with offsets.
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Quick conversion table
Handy values for Teaspoon (US) to Milliliter (mL). Click a value to open that exact result.
Conversion formula
Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Common mistakes
- Mixing US gallons (3.785 L) with Imperial gallons (4.546 L).
- Assuming kitchen ‘cup’ equals the same volume in every country.
Unit facts
- Teaspoon (US): A US teaspoon is ≈4.9289 mL; differs by region.
- Milliliter (mL): One milliliter is 1/1000 L, equal to 1 cm³; typical for dosages and lab volumes.
About Teaspoon (US)
Teaspoon (US)
≈ 4.929 mL. Useful for small volumes and medication dosing. In lab contexts replaced by mL for clarity.
History: Evolved from household spoons; modern practice fixes approximate metric equivalents.
About Milliliter (mL)
Milliliter (mL)
Equals 1/1000 L and exactly 1 cm³. Used for doses, pipetting, coffee shots, and cosmetic volumes.
History: Popularized by laboratory glassware standards and medical dosing practices.