How old are you going to bewhen you die?

There is no way to determine that without more information such as country of residence, sex, lifestyle, etc... and even then, it would be a rough guess at best. Average life expectancy in the US is about 75 for males and 78 for females. In Iceland (which by the way has the highest life expectancy) it is 80 for males and 83 for females. In some countries in Africa the life expectancy can be as little as 35 years.