A new conservative computational procedure is proposed for calculating the average absorbed energy of electron radiation in objects undergoing radiation processing. Semi-empirical relationships were obtained and software for dosimetry of electron radiation was developed. A comparison was made of the results obtained using the proposed method with the results of known and traditional methods of electron radiation dosimetry as well as with the results of measurements performed at the sterilization center of the Institute of Nuclear Chemistry and Technology, Warsaw, Poland was carried out.