4.2 mL ≈ 0.709533 tsp (Imperial; in US teaspoons: 4.2 mL = 0.852113 US tsp). To convert millilitres to teaspoons, multiply by 0.16893639: 4.2 × 0.16893639 = 0.709533.
How to convert millilitres to teaspoons
tsp = mL × 0.16893639
- 1 mL = 0.16893639 tsp (and 1 tsp = 5.9193877 mL).
- Multiply the amount by the factor: 4.2 × 0.16893639 = 0.709533.
- Answer: 4.2 mL ≈ 0.709533 tsp (rounded to 6 significant figures).
Millilitres to Teaspoons table
| Millilitres (mL) | Teaspoons (tsp) |
|---|---|
| 3.7 mL | 0.625065 tsp |
| 3.8 mL | 0.641958 tsp |
| 3.9 mL | 0.658852 tsp |
| 4 mL | 0.675746 tsp |
| 4.1 mL | 0.692639 tsp |
| 4.2 mL | 0.709533 tsp |
| 4.3 mL | 0.726426 tsp |
| 4.4 mL | 0.74332 tsp |
| 4.5 mL | 0.760214 tsp |
| 4.6 mL | 0.777107 tsp |
| 4.7 mL | 0.794001 tsp |
| mL | tsp |
|---|---|
| 1 mL | 0.168936 tsp |
| 5 mL | 0.844682 tsp |
| 10 mL | 1.6894 tsp |
| 50 mL | 8.4468 tsp |
| 100 mL | 16.8936 tsp |
| 1,000 mL | 168.936 tsp |
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: 4.2 mL = 0.852113 US tsp.