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Cooking tbsp to tsp

Convert tablespoons to teaspoons, millilitres and fluid ounces for US, metric and Australian measures.

Built and maintained by The NumberPrism Editorial TeamEditorial policy

Your details

Results update as you type. The formula and assumptions are explained below the calculator.

Teaspoons

9 tsp

Millilitres44.36 ml
US fluid ounces1.5 fl oz
US cups0.188 cups
Millilitres per tablespoon14.79 ml

US and metric tablespoons differ by about 1.4%. Australian tablespoons are 20 ml, a quarter larger than a US tablespoon.

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How to convert tablespoons to teaspoons

Multiply by three and choose the matching measuring system.

1

Enter tablespoons

Use the quantity in the recipe, including fractions.

2

Pick the system

Choose US, metric or Australian so the millilitre figure matches your spoons.

3

Read teaspoons

The main result is three times the tablespoon count.

What does this tool do?

A tablespoon is three teaspoons everywhere, but the volume of a tablespoon differs between the US, metric and Australian systems. Pick the system your recipe uses.

The Formula

Teaspoons = tablespoons × 3; millilitres = tablespoons × 14.787 (US), 15 (metric) or 20 (Australian)

Frequently Asked Questions

How many teaspoons are in a tablespoon?

Three, in every system. The tablespoon itself is larger in Australia and slightly larger in the US than in metric recipes.

Why is an Australian tablespoon different?

Australia standardised a 20 ml tablespoon, while the US uses 14.787 ml and most metric recipes round to 15 ml.