World Population
(1500 - current)
Population Milestones
| Population | Year | Nbr Years Per Billion | |
|---|---|---|---|
| 1B | 1804 | ||
| 2B | 1927 | 123 | 123 years from 1B to 2B |
| 3B | 1959 | 32 | |
| 4B | 1974 | 15 | |
| 5B | 1987 | 13 | |
| 6B | 1998 | 11 | only 11 years from 5B to 6B |
| 7B | 2011 | 13 | ← first increase (11 to 13 years) from 6B to 7B |
Nbr Years Per Billion
- 123
- 32
- 15
- 13
- 11
- 13
- 1B-2B
- 2B-3B
- 3B-4B
- 4B-5B
- 5B-6B
- 6B-7B
United Nations World Population Estimates
(billions)
- 7.3
- 8.5
- 9.7
- 11.2
- 2015
- 2030
- 2050
- 2100