Quarts (UK) to gallons (UK) conversion calculator shown above calculates how many gallons (UK) are in 'X' quarts (UK) (where 'X' is the number of quarts (UK) to convert to gallons (UK)). In order to convert a value from quarts (UK) to gallons (UK) (from qt to gal) type the number of qt to be converted to gal and then click on the 'convert' button.