Current World Population
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Births today
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Births this year
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Deaths today
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Deaths this year
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Population growth today
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Population growth this year

Top 20 Largest Countries by Population (live)
1 China
    11 Mexico
 
2 India
    12 Philippines
 
3 USA
    13 Ethiopia
 
4 Indonesia
    14 Vietnam
 
5 Brazil
    15 Egypt
 
6 Pakistan
    16 Germany
7 Nigeria
    17 Iran
 
8 Bangladesh
    18 Turkey
 
9 Russia
  19 Congo
 
10 Japan
  20 Thailand
 


     





World Population sections:

World Population: Past, Present, and Future

(move and expand the bar at the bottom of the chart to navigate through time)
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The chart above clearly illustrates how world population has changed in history.

At the dawn of agriculture, about 8000 B.C., the population of the world was approximately 5 million. Over the 8,000-year period up to 1 A.D. it grew to 200 million (some estimate 300 million or even 600, suggesting how imprecise population estimates of early historical periods can be), with a growth rate of under 0.05% per year.

A tremendous change occurred with the industrial revolution: whereas it had taken all of human history until around 1800 for world population to reach one billion, the second billion was achieved in only 130 years (1930), the third billion in less than 30 years (1959), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987).

Sources:

 


World Population Milestones

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8 Billion (2024)

According to the most recent United Nations estimates, the human population of the world is expected to reach 8 billion people in the spring of 2024.

7 Billion (2011)

According to the United Nations, world population reached 7 Billion on October 31, 2011.
The US Census Bureau made a lower estimate, for which the 7 billion mark was only reached on March 12, 2012.

6 Billion (1999)

According to the United Nations, the 6 billion figure was reached on October 12, 1999 (celebrated as the Day of 6 Billion). According to the U.S. Census Bureau instead, the six billion milestone was reached on July 22, 1999, at about 3:49 AM GMT. Yet, according to the U.S. Census web site, the date and time of when 6 billion was reached will probably change because the already uncertain estimates are constantly being updated.

Previous Milestones

Summary Table

 
1 - 1804 (1803 years): 0.2 to 1 bil.
1804 - 2011 (207 years): from 1 billion to 7 billion
Year
1
1000
1500
1650
1750
1804
1850
1900
1927
1950
1960
1974
1980
1987
1999
2011
2020
2024
2030
2040
2050
2062
2100
Pop, (billions)
0.2
0.275
0.45
0.5
0.7
1
1.2
1.6
2
2.55
3
4
4.5
5
6
7
7.7
8
8.4
9
9.5
10
10.8

 

Wonder how big was the world's population when you were born? Check out this simple wizard or this more elaborated one to find out.


Growth Rate

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Population in the world is currently growing at a rate of around 1.14% per year. The average population change is currently estimated at around 80 million per year.

Annual growth rate reached its peak in the late 1960s, when it was at 2% and above. The rate of increase has therefore almost halved since its peak of 2.19 percent, which was reached in 1963.

The annual growth rate is currently declining and is projected to continue to decline in the coming years. Currently, it is estimated that it will become less than 1% by 2020 and less than 0.5% by 2050.

This means that world population will continue to grow in the 21st century, but at a slower rate compared to the recent past. World population has doubled (100% increase) in 40 years from 1959 (3 billion) to 1999 (6 billion). It is now estimated that it will take a further 43 years to increase by another 50%, to become 9 billion by 2042.

The latest United Nations projections indicate that world population will nearly stabilize at just above 10 billion persons after 2062.


Top 20 Countries 2013-2100

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By 2030 India's population is expected to surpass China's, to become the largest country in the world.
Nigeria's population is expected to surpass the U.S. population in 2045 to become the third-most populous country in the world, starting to rival China by the end of the century, with almost 1 billion people in 2100.

World Population by Region

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World Population Density (people/km2)

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Population density map of the world showing not only countries but also many subdivisions (regions, states, provinces).


Courtesy of Junuxx at en.wikipedia [CC-BY-SA-3.0 or GFDL], via Wikimedia Commons


World Population by Religion

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According to a recent study (based on the 2010 world population of 6.9 billion) by The Pew Forum, there are:


World Population by Country

(click on any category to sort values)
view full table
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World Population: Gender, Age, Fertility Rate, Immigration

(view full table)
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How many people have ever lived on earth?

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It was written during the 1970s that 75% of the people who had ever been born were alive at that moment. This was grossly false.

Assuming that we start counting from about 50,000 B.C., the time when modern Homo sapiens appeared on the earth (and not from 700,000 B.C. when the ancestors of Homo sapiens appeared, or several million years ago when hominids were present), taking into account that all population data are a rough estimate, and assuming a constant growth rate applied to each period up to modern times, it has been estimated that a total of approximately 106 billion people have been born since the dawn of the human specie, making the population currently alive roughly 6% of all people who have ever lived on planet Earth.

Others have estimated the number of human beings who have ever lived to be anywhere from 45 billion to 125 billion, with most estimates falling into the range of 90 to 110 billion humans.

World Population clock: sources and methodology

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The world population counter displayed on Worldometers takes into consideration data from two major sources: the United Nations and the U.S. Census Bureau.

  1. The United Nations Population Division of the Department of Economic and Social Affairs every two years calculates, updates, and publishes estimates of total population in its World Population Prospects series. These population estimates and projections provide the standard and consistent set of population figures that are used throughout the United Nations system.

    The World Population Prospect: the 2012 Revision provides the most recent data available (released on June 13, 2013). Estimates and projected world population and country specific populations are given from 1950 through 20100. According to the United Nations, world population has reached 7 billion on October 31, 2011.

    Data underlying the population estimates are national and sub national census data and data on births, deaths, and migrants available from national sources and publications, as well as from questionnaires. For all countries, census and registration data are evaluated and, if necessary, adjusted for incompleteness by the Population Division as part of its preparations of the official United Nations population estimates and projections.

  2. The International Programs Center at the U.S. Census Bureau, Population Division also develops estimates and projections based on analysis of available data (based on census, survey, and administrative information) on population, fertility, mortality, and migration for each country or area of the world.

    For most countries adjustment of the data is necessary to correct for errors, omissions, and inconsistencies in the data. Finally, since most recent data for a single country is often at least two years old, the current world population figure is necessarily a projection of past data based on assumed trends. As new data become available, assumptions and data are reevaluated and past conclusions and current figures may be modified.

    For information about how these estimates and projections are made by the U.S. Census Bureau, see the Population Estimates and Projections Methodology.

Why Worldometers clocks are the most accurate

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The above world population clock is based on the estimates of the United Nations and will show the same number wherever you are in the world and whatever time you set on your PC. Worldometers is the only website to show live counters that are based on UN data and that do not follow the user's PC clock.

Visitors around the world visiting a PC clock based counter, such as the the United Nations' one on http://7billionactions.org and http://ngm.nationalgeographic.com/7-billion see different numbers depending on where they are located, and therefore have seen the clock reaching 7 billion whenever their locally set PC clocks reached 4:21:10 AM on October 31, 2011. As a test, try changing the date to yesterday on your computer clock, and watch what happens to http://ngm.nationalgeographic.com/7-billion. With 39 time zones around the world, every visitor is seeing a different number right now on the United Nations clock. Look instead at Worldometers.

Obviously, the UN data is based on estimates and can't be 100% accurate, so in all honesty nobody can possibly say with any degree of certainty on which day world population reaches 7 billion (or any other exact number), let alone at what time. But once an estimate is done (based on the best data and analysis available), the world population clock should be showing the same number at any given time anywhere around the world.




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