Teaspoons to Milliliters
Convert tsp to mL quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
1 tsp equals approximately 4.92892 mL.
How to use the Teaspoons to Milliliters
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
1 tsp equals approximately 4.92892 mL.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common tsp to mL conversions
| tsp | mL |
|---|---|
| 1 tsp | 4.92892 mL |
| 2 tsp | 9.85784 mL |
| 5 tsp | 24.6446 mL |
| 10 tsp | 49.2892 mL |
| 20 tsp | 98.5784 mL |
| 50 tsp | 246.446 mL |
Example
For example, entering 1 tsp gives approximately 4.92892 mL using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.