Jabarkan Saiz KDNK dari Senarai empayar terbesar dalam bahasa melayu

Empayar British - $683.3 bilion (pada 1938)

Empayar Jerman Nazi - $375.6 bilion (pada 1938)

Empayar Jepun - $260.7 bilion (pada 1938)

Empayar Rusia - $257.7 bilion (pada 1913)

Empayar Qing, China - $241.3 bilion (KDNK jatuh pada 1912, serta merta sebelum kejatuhannya)

Empayar Perancis - $234.1 bilion (pada 1938)

Empayar Itali - $143.4 bilion (in 1938)

India British - $134.9 bilion (pada 1870)

Empayar Afsharid, Parsi - $119.85 bilion (pada 1740)

Empayar Austria-Hungary - $100.5 bilion (pada 1913)

Empayar Mughal, India - $90.8 bilion (KDNK jatuh pada 1700)

Empayar Belanda - $60 bilion (pada 1900)

Empayar Uthmaniyyah - $26.4 bilion (pada 1913)

Empayar Portugal - $12.6 bilion (pada 1913)

Jonathan M. Adams, Thomas D. Hall and Peter Turchin (2004). East-West Orientation of Historical Empires.  University of Connecticut.

J. Beloch (1886), Die Bevölkerung der griechisch–römischen Welt, Duncker and Humblot, Leipzig.

Jean-Noël Biraben (2003). "The rising numbers of humankind", Populations & Societies 394.

Roger Boesche (2003). "Kautilya’s Arthashastra on War and Diplomacy in Ancient India", The Journal of Military History 67 (p. 9–38).

Stephen Broadberry and Mark Harrison (2005). The Economics of World War I. Cambridge University Press. ISBN 0-521-8521-2-9.

Christopher Chase-Dunn, Alexis Álvarez, and Daniel Pasciuti (2002). Power and Size: Urbanization and Empire Formation in World-Systems Since the Bronze Age. University of California, Riverside.

Raymond W. Goldsmith (1984), "An estimate of the size and structure of the national product of the Early Roman Empire", Journal of the International Association for Research in Income and Wealth 30

Bruce R. Gordon (2005). To Rule the Earth... (See Bibliography for sources used.)

Mark Harrison (1998). The Economics of World War II: Six Great Powers in International Comparison.

Angus Maddison (2001). The World Economy: A Millennial Perspective. OECD, Paris.

Angus Maddison (2006). The Contours of the World Economy 1-2030 AD. Oxford University Press.

Colin McEvedy and Richard Jones (1978), "Atlas of World Population History", Facts on File (p. 342-351). New York.

Sevket Pamuk (2005), "The Ottoman Empire in World War I". In Stephen Broadberry and Mark Harrison (2005), The Economics of World War I, p. 112-136. Cambridge University Press. ISBN 0-521-8521-2-9.

Donald Quataert (2005). The Ottoman Empire, 1700-1922.

Walter Scheidel (2005). The monetary systems of the Han and Roman empires. Stanford University.

Walter Scheidel (2006). Imperial state formation in Rome and China. Stanford University.

Carla M. Sinopoli (2003). The Political Economy of Craft Production: Crafting Empire in South India, C. 1350-1650.

Ralph Thomlinson (1975), Demographic Problems, Controversy Over Population Control, Second Edition.

Dr Frances Wood (2006). China: The Three Emperors.  Royal Academy.

H. Yoon (1985). "An early Chinese idea of a dynamic environmental cycle", GeoJournal 10 (2), p. 211-212.

K. A. Nilakanta Sastri.(1935)"The Cholas"" University of Madras.