How many teaspoons in a tablespoon?

In the US Customary and Imperial systems, as well as in most metric systems, there are 3 teaspoons in 1 tablespoon.

Here are the key points:

• 1 tablespoon (tbsp) = 3 teaspoons (tsp)135.
• To convert teaspoons to tablespoons, you divide the number of teaspoons by 3135.
• To convert tablespoons to teaspoons, you multiply the number of tablespoons by 335.

The only exception to this rule is in Australia, where 1 Australian metric tablespoon equals 4 Australian metric teaspoons due to the different volume measurements (20mL for a tablespoon and 5mL for a teaspoon)5.