tablespoons to teaspoons Converter
Type a value in tablespoons and get the answer in teaspoons instantly — or convert the other way. The conversion uses the exact relationship 1 tablespoons = 3 teaspoons, the same formula used in textbooks and engineering references.
The most common baking substitution there is: 1 tablespoon (tbsp) equals exactly 3 teaspoons (tsp). When you are out of one spoon size mid-recipe, the conversion saves the batch — no scale, no math beyond ×3.
How to use
- Type your value into the tablespoons box — the teaspoons result updates as you type.
- To go the other direction, type into the teaspoons box instead and read the tablespoons result.
- Copy the result with one tap, or scan the reference table below for common values.
Frequently asked questions
How do you convert tablespoons to teaspoons?
Multiply the number of tablespoons by 3. For example, 10 tablespoons = 30 teaspoons. The converter above does this for you and shows more decimal places than you will ever need.
How many teaspoons are in one tablespoons?
Exactly 3 teaspoons. This is a fixed definition, not an approximation, so the conversion is exact at any scale.
Is this converter accurate for professional use?
Yes — it uses full double-precision arithmetic and the official tablespoons-to-teaspoons factor, so results are reliable for schoolwork, cooking, fitness, travel and technical work.
Can I convert teaspoons back to tablespoons?
Yes. The converter is two-way: just type in the second box and the first box updates instantly with the reverse conversion.