2.1 tsp ≈ 12.4307 mL (Imperial; in US teaspoons: 2.1 US tsp = 10.3507 mL). To convert teaspoons to millilitres, multiply by 5.9193877: 2.1 × 5.9193877 = 12.4307.
How to convert teaspoons to millilitres
mL = tsp × 5.9193877
- 1 tsp = 5.9193877 mL (and 1 mL = 0.16893639 tsp).
- Multiply the amount by the factor: 2.1 × 5.9193877 = 12.4307.
- Answer: 2.1 tsp ≈ 12.4307 mL (rounded to 6 significant figures).
Teaspoons to Millilitres table
| Teaspoons (tsp) | Millilitres (mL) |
|---|---|
| 1.6 tsp | 9.471 mL |
| 1.7 tsp | 10.063 mL |
| 1.8 tsp | 10.6549 mL |
| 1.9 tsp | 11.2468 mL |
| 2 tsp | 11.8388 mL |
| 2.1 tsp | 12.4307 mL |
| 2.2 tsp | 13.0227 mL |
| 2.3 tsp | 13.6146 mL |
| 2.4 tsp | 14.2065 mL |
| 2.5 tsp | 14.7985 mL |
| 2.6 tsp | 15.3904 mL |
| tsp | mL |
|---|---|
| 1 tsp | 5.9194 mL |
| 5 tsp | 29.5969 mL |
| 10 tsp | 59.1939 mL |
| 50 tsp | 295.969 mL |
| 100 tsp | 591.939 mL |
| 1,000 tsp | 5,919.39 mL |
Good to know
The tsp here is the Imperial (UK) teaspoon: 1 tsp = 0.00591939 L. A US teaspoon is 0.00492892 L.
In US teaspoons: 2.1 US tsp = 10.3507 mL.