Convert tsp to tbsp
Convert tsp to tbsp instantly. 1 tsp = 0.333333 tbsp. Formula, worked examples and a quick reference table.
Last updated
One us teaspoon equals 0.333333 us tablespoons. To convert any number of us teaspoons to us tablespoons, multiply by 0.33333333.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Volume is the category where the US and imperial systems diverge most damagingly. Gallons, quarts, pints and fluid ounces all exist in two sizes that differ by up to 20%, and nothing in the name warns you which one a figure uses. Recipes, fuel economy figures and container capacities all cross borders regularly, so it is worth checking which system a source is using before converting rather than after.
tsp to tbsp formula
To go the other way, use us teaspoon = us tablespoon ÷ 0.33333333.
About these units
A US teaspoon is 4.93 millilitres, rounded to 5 ml almost everywhere in practice. Australian tablespoons are the outlier at 20 ml rather than 15.
A tablespoon is three teaspoons in the US and UK, at about 14.8 ml, but 20 ml in Australia — a difference large enough to matter for anything strongly flavoured.
US Teaspoon is also written teaspoons and tsps. US Tablespoon is also written tablespoons, tbs and tbsps.
Sources
tsp to tbsp conversion table
| US Teaspoon | US Tablespoon |
|---|---|
| 1 tsp | 0.3333 tbsp |
| 2 tsp | 0.6667 tbsp |
| 3 tsp | 1 tbsp |
| 5 tsp | 1.6667 tbsp |
| 10 tsp | 3.3333 tbsp |
| 20 tsp | 6.6667 tbsp |
| 25 tsp | 8.3333 tbsp |
| 50 tsp | 16.6667 tbsp |
| 100 tsp | 33.3333 tbsp |
| 250 tsp | 83.3333 tbsp |
| 500 tsp | 166.6667 tbsp |
| 1,000 tsp | 333.3333 tbsp |
Frequently asked questions
How many us tablespoons are in a us teaspoon? +
There are 0.333333 us tablespoons in one us teaspoon.
What is 10 tsp in tbsp? +
10 tsp equals 3.3333 tbsp. Multiply 10 by 0.33333333.
How do I convert us tablespoon back to us teaspoon? +
Use us teaspoon = us tablespoon ÷ 0.33333333. The converter above handles both directions, or see our dedicated tbsp to tsp page.
How accurate is this us teaspoon to us tablespoon conversion? +
The factor used is 0.3333333333, carried at full double precision. Where a unit has an exact legal definition the factor is exact rather than approximate. Rounding is applied only to the displayed result, so the answer is never a calculation done on an already-rounded number.
Is there a quick way to estimate tsp to tbsp in my head? +
Divide by 3. That matches the true factor of 0.333333 exactly, so no adjustment is needed for a mental estimate.