BTU (IT) per minute to calories per hour converter above calculates how many calories per hour are in 'X' BTU (IT) per minute (where 'X' is the number of BTU (IT) per minute to convert to calories per hour). In order to convert a value from BTU (IT) per minute to calories per hour (from BTU/min to cal/h) type the number of BTU/min to be converted to cal/h and then click on the 'convert' button.