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