Liter-atmosphere to gigacalories converter on this page calculates how many gigacalories are in 'X' liter-atmosphere (where 'X' is the number of liter-atmosphere to convert to gigacalories). In order to convert a value from liter-atmosphere to gigacalories (from L atm to Gcal) type the number of L atm to be converted to Gcal and then click on the 'convert' button.