3 stamps.
It depends entirely on the value of the stamps. In 2010, a standard letter currently requires a stamp or stamps to the value of 60c within Australia.
The number of stamps that you need to send a letter from Australia to London, will depend with the value of one stamp.
10
98 cents worth
You should probably go to your Postal Office, because it depends on the letter weight, what is in it, and how fast you want it to be shipped.
It takes three stamps to send a letter to Norway.
how many forever stamps = .94
5
3 stamps!
12 stamps
700 Stamps
If it's a standard size envelope and weighs 30g or less, it costs $1.05. How many stamps that is depends on the value of the stamps. If it's bigger or heavier, it will cost more.