Milliwatts to kilocalories per minute converter above calculates how many kilocalories per minute are in 'X' milliwatts (where 'X' is the number of milliwatts to convert to kilocalories per minute). In order to convert a value from milliwatts to kilocalories per minute (from mW to kcal/min) type the number of mW to be converted to kcal/min and then click on the 'convert' button.