Teaspoons to Milliliters Formula
milliliters = teaspoons × 4.9289215938
One teaspoon is 4.9289215938 milliliters, by definition, so the conversion is exact. For example, 1 tsp × 4.9289215938 = 4.928922 ml.
Teaspoons to Milliliters (tsp to ml) Converter
Enter US teaspoons to get milliliters.
1 US teaspoon = 4.92892159375 ml
From
To
4.9289215938
Try:
Step-by-steptsp → ml
11 tsp = 4.9289215938 mlformula
21 × 4.9289215938substitute
3≈ 4.9289215938 mlresult
Medicine Doses
Liquid medicine doses are given in ml. Pharmacies treat a teaspoon as exactly 5 ml, but a kitchen teaspoon can hold anywhere from 3 to 7 ml depending on its shape. Always use the syringe or cup that comes with the medicine.
Fractional Teaspoons
| Measure | US (ml) | Metric (ml) |
|---|---|---|
| 1/8 tsp | 0.62 | 0.625 |
| 1/4 tsp | 1.23 | 1.25 |
| 1/2 tsp | 2.46 | 2.5 |
| 3/4 tsp | 3.7 | 3.75 |
| 1 tsp | 4.93 | 5 |
Teaspoons to Milliliters Table
| Teaspoons (tsp) | Milliliters (ml) |
|---|---|
| 0.125 tsp | 0.6161 ml |
| 0.25 tsp | 1.2322 ml |
| 0.5 tsp | 2.4645 ml |
| 0.75 tsp | 3.6967 ml |
| 1 tsp | 4.9289 ml |
| 1.5 tsp | 7.3934 ml |
| 2 tsp | 9.8578 ml |
| 2.5 tsp | 12.3223 ml |
| 3 tsp | 14.7868 ml |
| 4 tsp | 19.7157 ml |
| 5 tsp | 24.6446 ml |
| 6 tsp | 29.5735 ml |
Common Questions
How many ml is a teaspoon?
A US teaspoon is 4.93 ml. A metric teaspoon, and the standard medicine teaspoon, is 5 ml.
Is 5 ml a teaspoon?
Yes, by the metric and medical definition. A US customary teaspoon is very slightly smaller.
How many teaspoons is 10 ml?
10 ml is 2 metric teaspoons, or about 2.03 US teaspoons.
Should I use a kitchen spoon for medicine?
No. Kitchen spoons vary in size. Use the measuring syringe or cup supplied with the medicine.
Related Volume Converters
Milliliters to Liters→Liters to Milliliters→US cups to Milliliters→Milliliters to US cups→US fluid ounces to Milliliters→Milliliters to US fluid ounces→All Volume Converters→
Reference: NIST Handbook 44, Appendix C: General Tables of Units of Measurement (US units); UK Weights and Measures Act 1985 (imperial units).