Calories (IT) to cubic feet of natural gas conversion calculator shown above calculates how many cubic feet of natural gas are in 'X' calories (IT) (where 'X' is the number of calories (IT) to convert to cubic feet of natural gas). In order to convert a value from calories (IT) to cubic feet of natural gas simply type the number of cal to be converted to cubic feet of natural gas and then click on the 'convert' button.