Volume

US tablespoon to US teaspoon

Convert US tablespoon (US tbsp) to US teaspoon (US tsp).

Result3 US teaspoon (US tsp)

Formula and method

result = value × (0.01478676478125 ÷ 0.00492892159375).

The source value is converted to the catalog’s canonical unit, then expressed in the target unit.

Worked examples

These examples use the same conversion engine as the calculator.

  • 1 US tbsp3 US tsp
  • 5 US tbsp15 US tsp
  • 10 US tbsp30 US tsp

Common US tablespoon values

US tablespoon to US teaspoon reference values
US tablespoon (US tbsp)US teaspoon (US tsp)
13
26
515
1030
2575
50150
100300
250750
5001,500
1,0003,000

How to convert US tablespoon to US teaspoon

  1. Enter a value in US tablespoon in the converter above.
  2. The calculator converts it using the catalog’s linear method.
  3. Choose the decimal precision you need,then copy the displayed result if useful.

Frequently asked questions

What is the formula for US tablespoon to US teaspoon?

result = value × (0.01478676478125 ÷ 0.00492892159375). The source value is converted to the catalog’s canonical unit, then expressed in the target unit.

Can I convert US teaspoon back to US tablespoon?

Yes. Use Swap Units when the reverse pair is available in the catalog. The page URL changes to the reverse conversion and the entered value is retained.

Why can a value be rejected?

The engine rejects non-finite values and negative values for units that do not allow them.

How are displayed decimal places chosen?

Use the Decimal precision selector above the result. Very large or very small results switch to scientific notation when that makes the value easier to read.