It took 200,000 years for our human population to reach 1 billion—and only 200 years to reach 7 billion. But growth has begun slowing, as women have fewer babies on average. When will our global population peak?
4. World population did not reach one billion until 1804. It took 123 years to reach 2 billion in 1927, 33 years to reach 3 billion in 1960, 14 years to reach 4 billion in 1974 and 13 years to reach 5 billion in 1987.
It took 200 years, to 1825, to double the world's population from 500 million to 1 billion. It took only 100 years to achieve the next doubling, bringing the total to 2 billion by 1930, and only 45 years to achieve yet another doubling, to 4 billion by 1975.
The Philippines' Commission on Population and Development selected Vinice Mabansag, a baby girl born in Manila, as the symbolic eight billionth person on Earth.
The UN estimated that the world population reached one billion for the first time in 1804. It was another 123 years before it reached two billion in 1927, but it took only 33 years to reach three billion in 1960.
two billion in 1927 (123 years later); three billion in 1960 (33 years later); four billion in 1974 (14 years later);
World population projected to reach 9.8 billion in 2050, and 11.2 billion in 2100. The current world population of 7.6 billion is expected to reach 8.6 billion in 2030, 9.8 billion in 2050 and 11.2 billion in 2100, according to a new United Nations report being launched today.
The global population is projected to reach 8 billion on 15 November 2022, and India is projected to surpass China as the world's most populous country in 2023, according to World Population Prospects 2022, released today on World Population Day.
Humans reached 1 billion around 1800, a doubling time of about 300 years; 2 billion in 1927, a doubling time of 127 years; and 4 billion in 1974, a doubling time of 47 years.
World's population could plummet to 6 billion by the end of the century, study suggests. A new model has predicted that Earth's population is likely to decrease in all scenarios across the next century and will peak nowhere near the 11 billion previously forecast.
For the time of speciation of Homo sapiens, some 200,000 years ago, an effective population size of the order of 10,000 to 30,000 individuals has been estimated, with an actual "census population" of early Homo sapiens of roughly 100,000 to 300,000 individuals.
It would take you 761 years to count to 8 billion. Do you like bananas? It would take you 200 lifetimes to eat 8 billion bananas. Crowd 8 billion people together, and they'd almost cover the land area of Alaska.
On November 15, 2022, according to the demographers at the United Nations Population Division, the 8 billionth person on the planet was born. That 8 billion mark is an estimate — there is no real-time census of everyone alive on Earth at every given moment, which means there's a margin of error.
In the International Journal of Forecasting study's median scenario, the global population is 11.1 billion in 2100, 10.4 billion in 2200 and 7.5 billion in 2300.
For the long period from the appearance of modern Homo sapiens up to the starting point of this chart in 10,000 BCE it is estimated that the total world population was often well under one million.
1000 years BCE the world population was 50 million people. 500 years BCE it was 100 million, and in the year 0 around 200 million people were estimated to live on Earth.
Earth's capacity
Many scientists think Earth has a maximum carrying capacity of 9 billion to 10 billion people.
Estimates vary, but we're expected to reach "peak human" around 2070 or 2080, at which point there will be between billion and 10.4 billion people on the planet.
The world population reached 10 million around 6500 BCE and 100 million around 1500 BCE. The billion milestones are: 1 billion: 1804.
By 1650, the world's population rose to about 500 million—not a large increase from the estimate of 300 million in 1 C.E. The average annual rate of growth was actually lower in this period than the rate suggested for 8000 B.C.E. to 1 C.E.
I gave birth on 15 November last year, the day the UN projected the world population to reach 8 billion. It was surreal.
Population growth has been steady over the past few decades, with billion-person marks coming every dozen years or so. But that pattern is changing. Growth is beginning to slow, and experts predict the world's population will top out sometime in the 2080s at about 10.4 billion.