Terawatts to calories per minute conversion calculator shown above calculates how many calories per minute are in 'X' terawatts (where 'X' is the number of terawatts to convert to calories per minute). In order to convert a value from terawatts to calories per minute (from TW to cal/min) type the number of TW to be converted to cal/min and then click on the 'convert' button.