Tablespoon to ml, Cups, and Fluid Ounces
Updated 17 April 2026
The three most-used adjacent unit conversions for tablespoons, in one page. Convert any tablespoon quantity to millilitres, US or UK fluid ounces, and US or UK cups.
1 tbsp = 15 ml
US/UK standard
1 tbsp = 0.5 fl oz
US fluid ounce
1 tbsp = 1/16 cup
US cup (236 ml)
1 tbsp = 20 ml
Australia only
Tablespoon Conversion Table
US fl oz = 29.57 ml. UK fl oz = 28.41 ml. US cup = 236.59 ml. UK cup = 284 ml.
Which fluid ounce system is my recipe in?
If the recipe is from a US source (American cookbook, US food website), use US fluid ounces (1 fl oz = 29.57 ml). If the recipe is from a UK source (British cookbook, UK food website), use UK imperial fluid ounces (1 fl oz = 28.41 ml). The difference is small (about 4%) and rarely matters in cooking. For baking precision, millilitres or grams are the most reliable. Australian recipes use metric exclusively: millilitres and grams rather than fluid ounces.