To find out the world population by religion, Research done on multiple sources like CIA Fact Sheet, WIKIPEDIA HOLT RINEHART WINSTON and other relevant sources. It is found that Muslim population is increasing due to higher birth rate and conversion, on the contrary, Christian populations is growing due to less growth rate in compare to Muslim

population and conversion. In Countries like Russia, Ukraine, Poland. Slovakia, Check Republic even in Italy, Greece, France and Germany & Japan average fertility rate is less than 2.11 which is required to survive the civilization unless migration of population rushes from over populated countries like Asia, Africa & South America. Population in European countries consist Christianity more. But people are turning to no religion, and Muslim’s growth rate is above the average. It is observed that Christian people in Europe, North America and South America are turning to no religion while Muslims are growing steadily.

Our calculations displayed that in 2012 Christian population is 2 billion and Muslims are 2.1 billion. We calculated on population data sheet of 2011 multiplying the growth rate such as Muslim 1.84% and Christianity 1.13% as found correctly from Carnegie Endowment for International Peace.

For Muslim Population Please Visit  http://www.islamicpopulation.com [Other Religion Data Coming soon].