Home › Unit Conversion › US teaspoons to US tablespoons
US teaspoons to US tablespoons (tsp to tbsp)
Convert US teaspoons to US tablespoons: 1 tsp = 0.333333 tbsp. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 tsp = 0.333333 tbsp
US tablespoons = US teaspoons × 0.3333333333 — reverse: US teaspoons = US tablespoons × 3
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 tsp = 1.66667 tbsp
- 12.5 tsp = 4.16667 tbsp
- 100 tsp = 33.3333 tbsp
US teaspoons to US tablespoons conversion table
| US teaspoons (tsp) | US tablespoons (tbsp) |
|---|---|
| 1 | 0.333333 |
| 2 | 0.666667 |
| 3 | 1 |
| 4 | 1.33333 |
| 5 | 1.66667 |
| 6 | 2 |
| 7 | 2.33333 |
| 8 | 2.66667 |
| 9 | 3 |
| 10 | 3.33333 |
| 15 | 5 |
| 20 | 6.66667 |
| 25 | 8.33333 |
| 30 | 10 |
| 40 | 13.3333 |
| 50 | 16.6667 |
| 75 | 25 |
| 100 | 33.3333 |
| 200 | 66.6667 |
| 250 | 83.3333 |
| 500 | 166.667 |
| 1000 | 333.333 |
FAQ
How many US tablespoons are in one teaspoon?
1 tsp = 0.333333 tbsp. 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 US teaspoons to US tablespoons?
Multiply the value in US teaspoons by 0.3333333333: US tablespoons = US teaspoons × 0.3333333333. For example, 5 tsp = 1.66667 tbsp.
How do I convert US tablespoons back to US teaspoons?
Multiply by the inverse factor 3 (US teaspoons = US tablespoons × 3), or use the US tablespoons-to-US teaspoons page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=tsp&to_unit=tbsp - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"tsp","to_unit":"tbsp"} - Markdown: https://tttkmbb.com/conversion/teaspoons-to-tablespoons.md · JSON: https://tttkmbb.com/conversion/teaspoons-to-tablespoons.json (add
?value=for a result) · Units: /api/v1/units?quantity=volume - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.