World Population: Past, Present, and Future(move and expand the bar at the bottom of the chart to navigate through time) Show
The chart above illustrates how world population has changed throughout history. View the full tabulated data. 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 30 years (1960), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987).
Wonder how big was the world's
population when you were born? Sources:
Growth RatePopulation in the world is, as of 2020, growing at a rate of around 1.05% per year (down from 1.08% in 2019, 1.10% in 2018, and 1.12% in 2017). The current average population increase is estimated at 81 million people per year. Annual growth rate reached its peak in the late 1960s, when it was at around 2%. The rate of increase has nearly halved since then, and will continue to decline in the coming years. World population will therefore continue to grow in the 21st century, but at a much 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 another nearly 40 years to increase by another 50% to become 9 billion by 2037. The latest world population projections indicate that world population will reach 10 billion persons in the year 2057. World Population (2020 and historical)View the complete population historical table
World Population Forecast (2020-2050)View population projections for all years (up to 2100)
World Population Milestones10 Billion (2057)The United Nations projects world population to reach 10 billion in the year 2057. 9 Billion (2037)World population is expected to reach 9 billion in the year 2037. 8 Billion (2023)World population is expected to reach 8 billion people in 2023 according to the United Nations (in 2026 according to the U.S. Census Bureau). 7.97 Billion (2022)The current
world population is 7.97 billion as of September 2022 [1] according to the most recent United Nations estimates elaborated by Worldometer. The term "World Population" refers to the human population (the total number of humans currently living) of the world. 7 Billion (2011) According to the United Nations, world population reached 7 Billion on October 31,
2011. 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, 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 Table1 - 1804 (1803 years): 0.2 to 1 bil. 1804 - 2011 (207 years): from 1 billion to 7 billion
World Population by Region
World Population Density (people/km2)Population density map of the world showing not only countries but also many subdivisions (regions, states, provinces). See also: World Map Courtesy of Junuxx at en.wikipedia [CC-BY-SA-3.0 or GFDL], via Wikimedia Commons World Population by ReligionAccording to a recent study (based on the 2010 world population of 6.9 billion) by The Pew Forum, there are:
World Population by Country
How many people have ever lived on earth?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 species, 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 methodologyThe world population counter displayed on Worldometer takes into consideration data from two major sources: the United Nations and the U.S. Census Bureau.
Why Worldometer clocks are the most accurateThe above world population clock is based on the latest estimates released in June of 2019 by the United Nations and will show the same number wherever you are in the world and whatever time you set on your PC. Worldometer is the only website to show live counters that are based on U.N. data and that do not follow the user's PC clock. Visitors around the world visiting a PC clock based counter, see different numbers depending on where they are located, and in the past have seen other world population clocks - such as the one hosted on a United Nations website and on National Geographic - reaching 7 billion whenever their locally set PC clocks reached 4:21:10 AM on October 31, 2011. 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 reached 7 billion (or any other exact number), let alone at what time. But once an estimate is made (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. How do you calculate population growth with crude birth rate?Another way to show this natural growth rate is to subtract the death rate from the birth rate during one year and convert this into a percentage. If the birth rate during one year is 52 per 1000 and the death rate is 12 per 1000, then the annual growth of this population is 52 - 12 = 40 per 1000.
How do you calculate crude birth rate?To determine the crude birth rate, the number of live births in a year is divided by the population size, and this result is then multiplied by 1,000.
How do you calculate crude birth rate and crude death rate?The CBR and CDR are determined by taking the total number of births or deaths in a population and dividing both values by a number to obtain the rate per 1,000.
How do you calculate the natural population growth of a country?The natural population change is calculated by births minus deaths and net migration is the number of immigrants (population moving into the country) minus the number of emigrants (population moving out of the country) - please see example below. In some countries population registers are used instead.
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