Convert Teaspoon (Metric) (tsp (m)) to Gallon (UK) (gal (UK)) instantly.
About these units
Teaspoon (Metric) (tsp (m))
The metric teaspoon is universally fixed at 5 mL, offering complete consistency across countries that use metric culinary measurements. This simplicity is a major advantage over historical teaspoon variations. In metric recipe writing—especially in Australia, New Zealand, and parts of Europe—teaspoons serve as standardized micro-measures that are easy to convert and scale. Its widespread adoption demonstrates the advantages of aligning traditional kitchen practices with the predictable structure of the metric system.
Gallon (UK) (gal (UK))
The UK gallon, defined as 4.54609 liters, is larger than the US gallon by nearly 20%. It originated from the British desire to standardize wine and ale measures, leading to a uniform definition during the 19th century. Today, the UK gallon appears in older recipes, fuel consumption discussions, and British Commonwealth trade documents. Although the UK now uses liters for petrol and milk, the gallon remains culturally familiar, especially in automotive contexts such as miles per gallon (MPG), where both imperial and US definitions cause frequent confusion. The UK gallon's legacy persists through its continued use in some Commonwealth nations and specialized industries where imperial measures remain customary.