Teaspoon (US) to Tablespoon (US) Converter
Volume · unit-converter
Convert Teaspoon (US) to Tablespoon (US) with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use liter-based factors (US fluid measures, imperial UK units, SI cubic meters).
Calculator
From: Teaspoon (US) (tsp)
To: Tablespoon (US) (tbsp)
About Teaspoon (US)
The US teaspoon is 1/6 US fluid ounce (about 4.9289 ml). US recipes use teaspoons for spices and small liquid amounts.
About Tablespoon (US)
The US tablespoon is 1/2 US fluid ounce (about 14.7868 ml). US recipes use tablespoons for cooking volumes.
How to convert teaspoons (us) to tablespoons (us)
1 teaspoon (us) is equal to 0.33333333333333 tablespoon (us):
1 tsp = (0.00492892159375 L ÷ 0.01478676478125 L) tbsp = 0.33333333333333 tbsp
1 US teaspoon = 1/3 US tablespoon.
Each teaspoon (us) is defined as 0.00492892159375 L and each tablespoon (us) as 0.01478676478125 L, so one tsp equals 0.00492892159375 ÷ 0.01478676478125 tbsp = 0.33333333333333 tbsp.
Let V(tsp) be the numeric value of the same volume measured in Teaspoon (US) (tsp), and V(tbsp) the value in Tablespoon (US) (tbsp). Then:
V(tbsp) = V(tsp) × (0.00492892159375 / 0.01478676478125)
Equivalently, divide by how many tsp fit into one tbsp (liters per tbsp divided by liters per tsp):
V(tbsp) = V(tsp) ÷ 3
Or: tablespoon (us) = teaspoon (us) ÷ 3
Examples
Example #1: Convert 20 tsp to tablespoon (us)
20 tsp = 20 tsp × (0.00492892159375/0.01478676478125) tbsp = 6.6666666667 tbsp
20 tsp = 20 tsp ÷ 3 = 6.6666666667 tbsp
Example #2: Convert 50 tsp to tablespoon (us)
50 tsp = 50 tsp × (0.00492892159375/0.01478676478125) tbsp = 16.6666666667 tbsp
50 tsp = 50 tsp ÷ 3 = 16.6666666667 tbsp
Summary
To convert Teaspoon (US) to Tablespoon (US), multiply the value in tsp by the ratio of liters per tsp divided by liters per tbsp. Equivalently: value_tbsp = value_tsp × (0.00492892159375 / 0.01478676478125). Numerically, 1 tsp equals 0.3333333333333333 tbsp.
Relationship context
Both units are US customary fluid / volume in this tool’s grouping. Conversions use fixed liter equivalents, so factors are consistent for cooking, engineering, and cross-checking labels. The factor from Teaspoon (US) to Tablespoon (US) is 3.333333e-1 (1 tsp = 0.3333333333333333 tbsp).
Conversion tables
| Teaspoon (US) (tsp) | Tablespoon (US) (tbsp) |
|---|---|
| 0.1 | 0.0333333333 |
| 1 | 0.3333333333 |
| 2 | 0.6666666667 |
| 3 | 1 |
| 4 | 1.3333333333 |
| 5 | 1.6666666667 |
| 6 | 2 |
| 7 | 2.3333333333 |
| 8 | 2.6666666667 |
| 9 | 3 |
| Teaspoon (US) (tsp) | Tablespoon (US) (tbsp) |
|---|---|
| 10 | 3.3333333333 |
| 20 | 6.6666666667 |
| 30 | 10 |
| 40 | 13.3333333333 |
| 50 | 16.6666666667 |
| 60 | 20 |
| 70 | 23.3333333333 |
| 80 | 26.6666666667 |
| 90 | 30 |
| 100 | 33.3333333333 |
Conversions outside the hub list
The grid on the category page lists hub units only. These pairs include at least one unit outside that hub set (same tools: formulas and tables on each page).
- us-teaspoon to uk-gallonTeaspoon (US) to Gallon (UK)
- us-teaspoon to uk-quartTeaspoon (US) to Quart (UK)
- us-teaspoon to uk-pintTeaspoon (US) to Pint (UK)
- us-teaspoon to us-quartTeaspoon (US) to Quart (US)
- us-teaspoon to us-pintTeaspoon (US) to Pint (US)
- us-teaspoon to uk-cupTeaspoon (US) to Cup (UK)
- us-teaspoon to us-cupTeaspoon (US) to Cup (US)
- us-teaspoon to uk-fluid-ounceTeaspoon (US) to Fluid Ounce (UK)
- us-teaspoon to uk-tablespoonTeaspoon (US) to Tablespoon (UK)
- us-teaspoon to uk-teaspoonTeaspoon (US) to Teaspoon (UK)
- uk-gallon to us-tablespoonGallon (UK) to Tablespoon (US)
- uk-quart to us-tablespoonQuart (UK) to Tablespoon (US)