Us Teaspoons to Milliliters
A US teaspoon is about 4.93 milliliters, a standard measure in American cooking recipes. A milliliter is one thousandth of a liter, equal to one cubic centimeter, used for medicine doses and small liquid measures. 1 tsp equals ≈4.92892 mL, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to volume, measured here against volume's base unit (L) — every other volume unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
mL = tsp × ≈4.92892
tsp = mL × ≈0.202884
Worked example: 5 tsp × ≈4.92892 = ≈24.6446 mL.
Conversion table
| Teaspoon (US) (tsp) | Milliliter (mL) |
|---|---|
| 1 tsp | ≈4.92892 mL |
| 2 tsp | ≈9.85784 mL |
| 3 tsp | ≈14.7868 mL |
| 5 tsp | ≈24.6446 mL |
| 10 tsp | ≈49.2892 mL |
| 20 tsp | ≈98.5784 mL |
| 25 tsp | ≈123.223 mL |
| 50 tsp | ≈246.446 mL |
| 100 tsp | ≈492.892 mL |
| 250 tsp | ≈1,232.23 mL |
| 500 tsp | ≈2,464.46 mL |
| 1,000 tsp | ≈4,928.92 mL |
Frequently asked
- How many Milliliters in a teaspoon (us)?
- 1 tsp equals ≈4.92892 mL.
- How do I convert Teaspoons (US) to Milliliters?
- Multiply the value in tsp by ≈4.92892 to get mL. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Teaspoon (US) and Milliliter are both defined by a fixed conversion factor to volume's base unit (L), so the result shown is exact to the precision displayed, not an approximation.