A tool for medical physicists to quickly estimate CT patient dose. A tool for medical physicists to quickly estimate CT patient dose, using published Dose Conversion Factors.This tool is not a medical tool, it serves only to give a quick estimate of the patient dose for a standard sized patient. Currently several Dose Conversion Coefficient tables are implemented for adults, and 5 age categories of pediatric patients. More (X-Ray) dose calculations will be implemented if enough people are interested in this application. This is the free version of my medical X-Ray patient dose calculator. If you do not like ads, or like to support my work, please buy the non-free version. Changes and extensions to the dose calculator will always be implemented in the non-free version first, but will at a later time also appear in this free version.