Conversion table
| Milliliters (mL) | Teaspoons (tsp) |
|---|---|
| 1.25 mL | 0.25 |
| 2.5 mL | 0.51 |
| 5 mL | 1.01 |
| 10 mL | 2.03 |
| 15 mL | 3.04 |
| 20 mL | 4.06 |
| 30 mL | 6.09 |
| 50 mL | 10.14 |
How to convert mL to Tsp
tsp = mL ÷ 4.929US customary · metric tsp = 5 mL · reverse: mL = tsp × 4.929
- mL
- millilitres you enter
- tsp
- result in teaspoons
- 4.929
- millilitres in one US teaspoon
Liquid-medicine doses are given in millilitres precisely because household teaspoons vary; use a 5 mL dosing spoon or syringe.
Frequently asked questions
How many mL are in a teaspoon?
A US teaspoon is 4.929 mL; the metric teaspoon used for medicine and measuring spoons is 5 mL.
Is 5 mL one teaspoon?
Yes. 5 mL is treated as one teaspoon; it is 1.01 US teaspoons exactly, close enough for cooking and dosing.
How many teaspoons is 10 mL?
10 mL is 2.03 US teaspoons, or exactly 2 metric (5 mL) teaspoons.
How many teaspoons is 15 mL?
15 mL is 3.04 US teaspoons, or 3 metric (5 mL) teaspoons, which is one tablespoon.
How much is half a teaspoon in mL?
Half a US teaspoon is about 2.46 mL; half a metric teaspoon is 2.5 mL.