world population
Input interpretation:
world
population
Result:
6.79 billion people
H2009 estimateL
Recent population history:
7
6.5
Hfrom 1990 to 2009L
6
Hin billions of peopleL
5.5
1995
2000
2005
Generated by Wolfram|Alpha (www.wolframalpha.com) on April 27, 2011 from Champaign, IL.
© Wolfram Alpha LLC—A Wolfram Research Company
1
world population
Long-term population history:
7
6
5
4
3
2
1
0
1850
1900
1950
2000
Hfrom 1800 to 2009L Hin billions of peopleL
Hpopulation for current political boundariesL
Demographics:
population
6.79 billion people
population density
118 peoplemi2 Hpeople per square mileL
population growth
1.14% per year
life expectancy
64.8 years
median age
27.6 years
H2009 estimateL
H2009 estimateL
H2006 estimateL
H2009 estimateL
Comparison:
» H 0.064 » 116 L ´ estimated total number of Homo sapiens to have ever lived H 106.5 billion people L
Generated by Wolfram|Alpha (www.wolframalpha.com) on April 27, 2011 from Champaign, IL.
© Wolfram Alpha LLC—A Wolfram Research Company
2
world population
Corresponding quantities:
Approximate heat production:
4.505 ´ 108 BTUIT HIT British thermal unitsL
475 GW HgigawattsL
Hassuming average adultsL
Generated by Wolfram|Alpha (www.wolframalpha.com) on April 27, 2011 from Champaign, IL.
© Wolfram Alpha LLC—A Wolfram Research Company
3