Christian population growth is the population growth of the global Christian community. According to a 2011 Pew Research Center survey, there were more than 2.2 billion Christians around the world in 2010, more than three times as many as the 600 million recorded in 1910. However, this rate of growth is slower than the overall population growth over the same time period. In 2020, Pew estimated the number of Christians worldwide to be around 2.38 billion. According to various scholars and sources, high birth rates and conversions in the Global South were cited as the reasons for the Christian population growth. Summary The Christian fertility rate is 2.7 children per woman, which is higher than the global average fertility rate of 2.5. Globally, Christians were only slightly older (median age of 30) than the global average median age of 28 in 2010. According to Pew Research religious switching is projected to have a modest impact on changes in the Christian population. According to various scholars and sources, Pentecostalism is the fastest-growing religious movement in the world; this growth is primarily due to religious conversion to Pentecostal and Charismatic Christianity. According to the World Christian Encyclopedia, approximately 2.7 million converting to Christianity from another religion, World Christian Encyclopedia also cited that Christianity rank at first place in net gains through religious conversion. While according to "The Oxford Handbook of Religious Conversion", approximately 15.5 million converting to Christianity from another religion, while approximately 11.7 million leave Christianity, and most of them become irreligious, resulting in a net gain of 3.8 million. Christianity earns about 65.1 million people due to factors such as birth rate, the religious conversion while losing 27.4 million people due to factors such as death rate, religious apostasy. Most of the net growth in the numbers of Christians are in Africa, Latin America and Asia. Fertility rate The Christian fertility rate has varied throughout history, as with other fertility figures. The Christian fertility rate also varies from country to country. In the 20-year period from 1989 to 2009, the average world fertility rate decreased from 3.50 to 2.58, a fall of 0.92 children per woman, or 26%. The weighted average fertility rate for Christian nations decreased in the same period from 3.26 to 2.58, a fall of 0.68 children per woman, or 21%. The weighted average fertility rate for Muslim nations decreased in the same period from 5.17 to