Teaspoons to ml
Convert teaspoons to milliliters for recipes, baking and medication dosing. US teaspoon = 4.93 mL; UK and Australian standards in reference table.
Last updated: May 2026
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How to use this converter
Teaspoons are a common recipe measure, while milliliters are precise for baking and medicine dosing. Use this converter when a recipe lists teaspoons but you measure in mL. ml = tsp × 4.92892159
Common reference values
| tsp | ml |
|---|---|
| 1 | 4.929 |
| 2 | 9.858 |
| 3 | 14.787 |
| 4 | 19.716 |
Frequently Asked Questions
Why convert between teaspoons and milliliters?
Recipes and cooking instructions use different volume units depending on region. Teaspoons are common in US recipes, while milliliters are standard in metric countries and professional cooking. Converting between them ensures accuracy in baking and precise ingredient measurement.
Is 1 teaspoon exactly 5 milliliters?
No. 1 US teaspoon equals approximately 4.92892 milliliters, not exactly 5 ml. For everyday cooking, the difference is negligible, but for precise baking or medication dosing, use exact values to ensure proper measurements.
What is the difference between teaspoons and metric teaspoons?
A US teaspoon (tsp) equals 4.92892 ml. A metric teaspoon equals exactly 5 ml. This converter uses the US standard. Always check your recipe source to confirm which definition is intended.