Could you calculate population of the whole world?

Each country has census of population. The cumulative result gives world population. Information on world population can be checked on Google search. This is presently 6.94 billion.

http://en.wikipedia.org/wiki/World_population

Yes each country has census of population,but it is done in along time interval.We can not get the exact population.

population of world is in billions and hard to count down.

Thank you for sharing the link with us,Gulshanji.However,we cant get the exact population.

Thank you for sharing the link with us,Gulshanji.However,we cant get the exact population.

You can never get exact population of a country or even state or district at a point of time immediately by direct count. You may count only in a small colony and village.

We depend on official census for information. There is time lag between census and its publication.