Convert Teaspoon (US) to Milliliter (mL)
Category: Volume
1 tsp = 4.928922 ml
Precision: 6 decimals; very small non-zero results use significant digits.
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).
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Quick conversion table
Handy values for Teaspoon (US) to Milliliter (mL). Click a value to calculate that result.
| Teaspoon (US) | Milliliter (mL) |
|---|---|
| 4.928922 | |
| 2.464461 | |
| 12.322304 | |
| 49.289216 |
Conversion formula
Use the following formula:
Milliliter (mL) ≈ Teaspoon (US) × 4.92892159375
Convert volume from Teaspoon (US) to Milliliter (mL) using a fixed unit ratio. Round only the final result.
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.