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Milliliters to US teaspoons (mL to tsp)
Convert milliliters to US teaspoons: 1 mL = 0.202884 tsp. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 mL = 0.202884 tsp
US teaspoons = milliliters × 0.2028841362 — reverse: milliliters = US teaspoons × 4.928921594
The factor is derived from the SI definitions of both units (base unit: L) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 5 mL = 1.01442 tsp
- 12.5 mL = 2.53605 tsp
- 100 mL = 20.2884 tsp
Milliliters to US teaspoons conversion table
| Milliliters (mL) | US teaspoons (tsp) |
|---|---|
| 1 | 0.202884 |
| 2 | 0.405768 |
| 3 | 0.608652 |
| 4 | 0.811537 |
| 5 | 1.01442 |
| 6 | 1.2173 |
| 7 | 1.42019 |
| 8 | 1.62307 |
| 9 | 1.82596 |
| 10 | 2.02884 |
| 15 | 3.04326 |
| 20 | 4.05768 |
| 25 | 5.0721 |
| 30 | 6.08652 |
| 40 | 8.11537 |
| 50 | 10.1442 |
| 75 | 15.2163 |
| 100 | 20.2884 |
| 200 | 40.5768 |
| 250 | 50.721 |
| 500 | 101.442 |
| 1000 | 202.884 |
FAQ
How many US teaspoons are in one milliliter?
1 mL = 0.202884 tsp. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.
What is the formula to convert milliliters to US teaspoons?
Multiply the value in milliliters by 0.2028841362: US teaspoons = milliliters × 0.2028841362. For example, 5 mL = 1.01442 tsp.
How do I convert US teaspoons back to milliliters?
Multiply by the inverse factor 4.928921594 (milliliters = US teaspoons × 4.928921594), or use the US teaspoons-to-milliliters page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=mL&to_unit=tsp - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"mL","to_unit":"tsp"} - Markdown: https://tttkmbb.com/conversion/ml-to-teaspoons.md · JSON: https://tttkmbb.com/conversion/ml-to-teaspoons.json (add
?value=for a result) · Units: /api/v1/units?quantity=volume - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.