Hundredweights (US) to kilograms converter above calculates how many kilograms are in 'X' hundredweights (US) (where 'X' is the number of hundredweights (US) to convert to kilograms). In order to convert a value from hundredweights (US) to kilograms (from cwt to kg) simply type the number of cwt to be converted to kg and then click on the 'convert' button.