BTU (IT) per minute to liter-atmosphere per second conversion calculator above calculates how many liter-atmosphere per second are in 'X' BTU (IT) per minute (where 'X' is the number of BTU (IT) per minute to convert to liter-atmosphere per second). In order to convert a value from BTU (IT) per minute to liter-atmosphere per second (from BTU/min to L atm/s) type the number of BTU/min to be converted to L atm/s and then click on the 'convert' button.