How many: things people built
29 things people built counts.
| Question | Answer |
|---|---|
| How many countries are there in the world? | 195 — or 193, or 206, or 249, depending on who is counting |
| How many cars are there in the world? | about 1.5 billion motor vehicles |
| How many planes are in the air right now? | roughly 10,000 to 20,000 at any moment |
| How many languages are there in the world? | about 7,150 living languages |
| How many McDonald's are there? | about 43,000 in over 100 countries |
| How many phones are there in the world? | about 8.9 billion mobile connections — more than there are people |
| How many nuclear weapons are there? | about 12,200 warheads |
| How many websites are there? | about 1.1 billion hostnames — but only around 200 million active |
| How many books have ever been published? | about 130 million as of 2010 — probably over 200 million now |
| How many airports are there in the world? | about 45,000 with runways — but only around 4,000 with scheduled airline service |
| How many ATMs are there in the world? | about 3 million |
| How many cities are there in the world? | about 10,000 with over 50,000 people; 33 megacities over 10 million |
| How many buildings are there in the world? | somewhere between 1.5 and 4 billion |
| How many computers are there in the world? | roughly 2 billion personal computers in use |
| How many miles of road are there in the world? | about 64 million km — roughly 40 million miles |
| How many vending machines are there? | roughly 15 million worldwide — about 4 million in Japan alone |
| How many ships are there in the world? | about 105,000 merchant ships — plus roughly 4 million fishing vessels |
| How many traffic lights are there? | about 300,000 signalised intersections in the United States |
| How many bridges are there? | more than 620,000 in the United States alone |
| How many elevators are there in the world? | about 21 million |
| How many houses are there in the world? | about 2.4 billion households |
| How many shipping containers are there? | about 60 million TEU — roughly 38 million actual boxes |
| How many servers are there in the world? | roughly 100 million |
| How many miles of railway are there in the world? | about 1.3 million km — roughly 800,000 miles |
| How many streetlights are there? | roughly 350 million worldwide |
| How many escalators are there in the world? | roughly one million |
| How many road signs are there? | roughly 50 to 70 million in the United States |
| How many tunnels are there? | no global count — China alone has about 25,000 road tunnels |
| How many manhole covers are there? | roughly 13 million in the United States, on a rough estimate |
- How many countries are there in the world? 195 — or 193, or 206, or 249, depending on who is counting
- How many cars are there in the world? about 1.5 billion motor vehicles
- How many planes are in the air right now? roughly 10,000 to 20,000 at any moment
- How many languages are there in the world? about 7,150 living languages
- How many McDonald's are there? about 43,000 in over 100 countries
- How many phones are there in the world? about 8.9 billion mobile connections — more than there are people
- How many nuclear weapons are there? about 12,200 warheads
- How many websites are there? about 1.1 billion hostnames — but only around 200 million active
- How many books have ever been published? about 130 million as of 2010 — probably over 200 million now
- How many airports are there in the world? about 45,000 with runways — but only around 4,000 with scheduled airline service
- How many ATMs are there in the world? about 3 million
- How many cities are there in the world? about 10,000 with over 50,000 people; 33 megacities over 10 million
- How many buildings are there in the world? somewhere between 1.5 and 4 billion
- How many computers are there in the world? roughly 2 billion personal computers in use
- How many miles of road are there in the world? about 64 million km — roughly 40 million miles
- How many vending machines are there? roughly 15 million worldwide — about 4 million in Japan alone
- How many ships are there in the world? about 105,000 merchant ships — plus roughly 4 million fishing vessels
- How many traffic lights are there? about 300,000 signalised intersections in the United States
- How many bridges are there? more than 620,000 in the United States alone
- How many elevators are there in the world? about 21 million
- How many houses are there in the world? about 2.4 billion households
- How many shipping containers are there? about 60 million TEU — roughly 38 million actual boxes
- How many servers are there in the world? roughly 100 million
- How many miles of railway are there in the world? about 1.3 million km — roughly 800,000 miles
- How many streetlights are there? roughly 350 million worldwide
- How many escalators are there in the world? roughly one million
- How many road signs are there? roughly 50 to 70 million in the United States
- How many tunnels are there? no global count — China alone has about 25,000 road tunnels
- How many manhole covers are there? roughly 13 million in the United States, on a rough estimate