Total death estimates across all combatants and Stalingrad's wartime civilian population range from about 1.1 million to more than 3 million, an enormous range reflecting incomplete and contested Soviet and German wartime records. No single reconciliation of these figures has achieved scholarly consensus.
What would resolve this A comprehensive reconciliation of Soviet and German unit records, hospital and burial records, and Stalingrad's wartime civilian population, none of which has yet been assembled to a scholarly consensus.
OpenMilitary historiography and historical demographyWikipedia: Battle of Stalingrad