You could also use WolframAlpha, e.g.: http://www.wolframalpha.com/input/?i=life+expectancy+in+usa+of+80-year+old http://www.wolframalpha.com/input/?i=life+exp

You could also use WolframAlpha, e.g.: http://www.wolframalpha.com/input/?i=life+expectancy+in+usa+of+80-year+old http://www.wolframalpha.com/input/?i=life+expectancy+in+usa+... Though that's really the current life expectancy, no one actually knows future life expectancy, which depends on future technology.