Volume · tsp → ml
US teaspoons to Millilitres
Enter any value below to convert us teaspoons to millilitres instantly.
To
1 tsp = 4.928922 ml
Conversion formula
How to convert tsp to ml
ml = tsp × 4.928922
Multiply the us teaspoons value by 4.928922 to get millilitres. The converter keeps extra precision internally and rounds only the displayed answer.
Converting us teaspoons to millilitres helps with cooking, fuel, containers, aquariums and liquid product specifications.
Worked example
Convert 10 tsp10 tsp = 49.289216 ml
Calculated with the published formula. No estimated exchange rates or hidden rounding.
Common us teaspoons to millilitres values
| US teaspoons (tsp) | Millilitres (ml) |
|---|---|
| 1 tsp | 4.928922 ml |
| 5 tsp | 24.644608 ml |
| 10 tsp | 49.289216 ml |
| 25 tsp | 123.22304 ml |
| 50 tsp | 246.44608 ml |
| 100 tsp | 492.892159 ml |
Quick answer
How many millilitres are in one us teaspoon?
One us teaspoon equals 4.928922 ml.