US tablespoon to Imperial tablespoon

One US tablespoon equals approximately 14.787 mL, typically rounded to 15 mL in culinary contexts. It equals 3 US teaspoons (3 × 4.929 mL = 14.787 mL).

The Australian tablespoon is 20 mL — about 35% larger than the US tablespoon (14.79 mL). When using Australian recipes: 1 Australian tbsp ≈ 1.35 US tbsp. This is a significant difference in baking.

There are 16 US tablespoons in one US cup (240 mL): 1 cup = 16 tbsp = 48 tsp = 8 fl oz.

One US tablespoon of butter weighs approximately 14.2 grams (½ oz). A standard 4-oz US butter stick = 8 tablespoons = ½ cup.

No. A US tablespoon is about 14.79 mL; a UK/imperial tablespoon is about 17.76 mL — approximately 20% larger. Most modern UK recipes now use 15 mL metric tablespoons.

One imperial tablespoon equals approximately 17.758 mL — larger than the US tablespoon (14.79 mL) and smaller than the Australian tablespoon (20 mL). Modern UK metric tablespoons are standardized at 15 mL.

Leavening failure. Baking powder and baking soda are measured in tablespoons, and the difference between a US tablespoon (14.8 mL), an imperial tablespoon (17.8 mL), and an Australian tablespoon (20 mL) is 15–35%. Too much baking soda makes bread taste metallic and soapy; too little and it does not rise. A British grandmother's scone recipe used in an American kitchen with US tablespoons will under-leaven by 20%. Professional bakers avoid this entirely by weighing leavening agents in grams.

No. Modern UK cooking uses 15 mL metric tablespoons. The imperial tablespoon (17.76 mL) appears only in pre-1970s British cookbooks.

One imperial tablespoon equals 3 imperial teaspoons (each ≈ 5.92 mL), giving 3 × 5.92 = 17.76 mL. The same 3:1 ratio as in US and metric systems, though the absolute sizes differ.

The Australian tablespoon is 20 mL — the largest of the major English-language cooking tablespoons. Australian recipes therefore use fewer tablespoon counts than US or UK recipes for the same volume.