Obviously , the cost of studying PhD and  living cost in the country largely depends on the country we have chosen. For instance : In the UK, the average total cost of studying PhD along with the living cost is nearly  10,032 pound per year. In the USA ,the average cost of studying PhD  is nearly US $20,000 -40,000  per year. In the New Zealand , the average cost to study PhD is around NZ $ 6698.00 annually. Now coming to Australia ,the average  total cost of doing a PhD is around  AUS $60,562 in Science, AUS $55,730 in  Business and in Arts  is nearly  AUS $ 54,764 for the entire duration  of the programme.