Tons of refrigeration (IT) to gigawatts conversion calculator shown above calculates how many gigawatts are in 'X' tons of refrigeration (IT) (where 'X' is the number of tons of refrigeration (IT) to convert to gigawatts). In order to convert a value from tons of refrigeration (IT) to gigawatts (from TR to GW) just type the number of TR to be converted to GW and then click on the 'convert' button.