tsp / tbsp / mL Conversion

1 tbsp = 3 tsp = 14.79 mL (US). Plus UK/AU 20 mL tbsp variant.

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How to use this calculator

  • Enter value + source unit.
  • Read all conversions.

About this calculator

Spoon volumes vary by region. US: 1 tbsp = 14.79 mL = 3 tsp. UK: 1 tbsp = 17.76 mL. Australia: 1 tbsp = 20 mL = 4 tsp. Most online recipes assume US measurements unless stated. EU metric tablespoon: 15 mL exactly. tsp universally ~5 mL. For pro baking: weigh, don't measure.

Frequently asked

US vs UK tablespoon?+
US: 14.79 mL. UK: 17.76 mL. AU: 20 mL. ~20% difference between US and AU. Salt amount could be way off.
What's a "level" tablespoon?+
Filled flat with the rim. "Heaping" or "rounded" can be 1.3-1.5×.
Cooking spoon vs measuring?+
Standard tableware varies wildly. Always use marked measuring spoons for recipes.
mL universal?+
Yes — same everywhere. Why pro baking books increasingly spec by mass and mL.
Why exact 14.79 mL for US tbsp?+
Defined by US Customary: 1 cup = 16 tbsp = 236.6 mL. So 1 tbsp = 14.79 mL.

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