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