how many machines are in the world

Question: how many machines are in the world
- Keywords:
  machine,
  world
Asked by #borbabanclockens rule to Dervil, Saoirse, Stephen on 18 Nov 2016.
- Stephen Davitt answered on 18 Nov 2016:
  
  So this is a tough one and its impossible to really know or count, but when you get problems like this we can make an educated guess so…
  
  There are 7.5billion people in the world
  
  Each person would have approximately 5-10 machines when we take into account, cars, computers, phones, washing machines, dishwashers, tvs etc…
  
  so 7,500,000,000 x 5 = 37,500,000,000
  7,500,000,000 x10 = 75,000,000,000
  
  so my best guess is between 37-75 billion devices in the world, but as I said this is only a rough guess