Teaspoons to Millilitres
Convert teaspoons (tsp) to millilitres (mL) instantly — with formula and reference table.
tsp
mL
Quick answer: 1 tsp = 4.928922 mL. To convert teaspoons to millilitres, multiply by tsp × 4.928922.
Converting teaspoons to millilitres
This converter changes a value in teaspoons (tsp) into millilitres (mL). One teaspoon equals 4.928922 mL. One US teaspoon equals 4.929 millilitres. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
mL = tsp × 4.928922
Example
Convert 10 tsp to mL: 10 × 4.928922 = 49.289216 mL.
Teaspoons to Millilitres conversion table
| Teaspoons (tsp) | Millilitres (mL) |
|---|---|
| 1 tsp | 4.928922 mL |
| 2 tsp | 9.857843 mL |
| 3 tsp | 14.786765 mL |
| 5 tsp | 24.644608 mL |
| 10 tsp | 49.289216 mL |
| 20 tsp | 98.578432 mL |
| 25 tsp | 123.22304 mL |
| 50 tsp | 246.44608 mL |
| 100 tsp | 492.892159 mL |
How to use this converter
- Enter a value in the teaspoons (tsp) field.
- Read the converted value in millilitres (mL) below.
- Type into the mL field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many millilitres are in a teaspoon?
1 US teaspoon equals 4.929 millilitres.
How do I convert 2 teaspoons to mL?
2 times 4.929 = 9.86 mL.
How many mL is a teaspoon of medicine?
A standard medical teaspoon is 5 mL.