Convert US Teaspoons to Milliliters
1 us teaspoon = 4.9289216 milliliters. Multiply the number of us teaspoons by 4.92892159375.
1 tsp = 4.928921594 mL
Multiply the number of us teaspoons by 4.92892159375.
Results are rounded for display. Double-check values for critical work.
Popular cooking & kitchen conversions
US Teaspoons to Milliliters table
| US Teaspoons | Milliliters |
|---|---|
| 1 tsp | 4.9289216 mL |
| 2 tsp | 9.8578432 mL |
| 3 tsp | 14.786765 mL |
| 4 tsp | 19.715686 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 | 492.89216 mL |
| 500 tsp | 2,464.4608 mL |
| 1000 tsp | 4,928.9216 mL |
US Teaspoons to Milliliters in your head
Multiply by 5.
That lands within 1% of the exact value.
10 tsp → 50 mL in your head, 49.2892 mL exactly.
About these units
The us teaspoon (tsp) is a US customary unit of cooking & kitchen, equal to 4.9289216 milliliters.
The milliliter (mL) is a metric unit of cooking & kitchen.
Going the other way, 1 milliliter = 0.20288414 us teaspoons. American recipes use volume, European recipes use weight and millilitres, and Australian tablespoons are bigger than everyone else's. This converter covers the volume side of the kitchen, including sticks of butter and the metric spoon sizes.
Frequently asked
- How many milliliters are in a us teaspoon?
- 1 us teaspoon = 4.9289216 milliliters.
- How do you convert us teaspoons to milliliters?
- Multiply the number of us teaspoons by 4.92892159375.
- What is 10 tsp in mL?
- 10 tsp = 49.289216 mL.