To convert teaspoons to ml, multiply by 4.928921594.
The calculation uses 1 tsp = 4.928921594 mL. Results are displayed to at most 10 significant digits. Definitions can be exact while a displayed decimal is rounded. Match the displayed precision to your original measurement.
The formula
value in mL = value in tsp × 4.928921594
tsp- Input unit: teaspoons
mL- Output unit: ml
How to use this calculator
- Enter a value in tsp.
- Multiply by the stored conversion factor.
- Read the result in mL; divide by the same factor to convert back.
Worked examples
Worked conversion
1 tsp × 4.928921594 ≈ 4.928921594 mL.
Reverse conversion
4.928921594 mL ÷ 4.928921594 ≈ 1 tsp. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 4.928921594 mL per tsp.
Why can another converter show a slightly different answer?
Check the unit convention first (such as US versus Imperial or decimal versus binary), then compare rounding. Measurement uncertainty is separate from the unit conversion.
tsp to mL table
| tsp | mL (rounded) |
|---|---|
| 0 | 0 |
| 1 | 4.928921594 |
| 2 | 9.857843188 |
| 5 | 24.64460797 |
| 10 | 49.28921594 |
| 100 | 492.8921594 |
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