Your fitness age

     Here is an easy way to calculate your fitness age.  Researchers at the University of Science and Technology in Trondheim did research that confirmed that VO2 max is a good indicator of fitness.  They built an algorithm for determining your VO2 max and fitness age.
     My fitness age is 46.  It could be better, but I will take it as a starting point.

Here is the easy on-line calculator:
http://www.ntnu.edu/cerg/vo2max

Here is the article:
http://sportsgeezer.com/2013/how-to-find-your-fitness-age/