According to Worldometers that shows real time population figure, World population reaches 7.4billions in 2016. World population is rapidly growing than ever. There were only 7 million people in B.C 4000. World population shows a steady growth curve until 1815 that shows a billion people. Since then, World population reached 1.6billions in 1900 and 7billions in 2011. Demographers predict that the number of world population will reach 9.6billions in 2050 and even 10billions in 2082 from its current form.