Here's a summary of the various estimates:
The high estimates of how many Bengalis were massacred are almost 10 times the low estimates:
* WHPSI: 307,013 deaths by pol.viol. in Pakistan, 1971.
* D.Smith says 500,000
* S&S: 500,000 (Civil War, Mar.-Dec. 1971)
* 1984 World Almanac: up to 1,000,000 civilians were killed.
* Hartman: 1,000,000 Bengalis
* B&J: 1,000,000 Bengalis
* Kuper cites a study by Chaudhuri which counted 1,247,000 dead, and mentions the possibility that it may be as many as 3,000,000.
* MEDIAN: 1,000,000-1,250,000
* Porter: 1M-2M
* Rummel: 1,500,000.
* Eckhardt: 1,000,000 civ. + 500,000 mil. = 1,500,000 (Bangladesh)
* Harff & Gurr: 1,250,000 to 3,000,000
* The official estimate in Bangladesh is 3 million dead. [AP 30 Dec. 2000; Agence France Presse 3 Oct. 2000;
* Rounaq Johan: 3,000,000 (in Century of Genocide: Eyewitness Accounts and Critical Views, Samuel Totten, ed., (1997))
* Compton's Encyclopedia, "Genocide": 3,000,000
* Encyclopedia Americana (2003), "Bangladesh": 3,000,000
Twentieth Century Atlas - Death Tolls