What is the average weight for a 6 foot 4 47 year old male?

Answer 1

Average or ideal? The "average" American is overweight.

I'd say a middle aged healthy man who is that tall (six-foot, four inches) should weigh 210 to 240 lbs depending on how muscular you are or want to be).

Answer 2

145-150 lbs is probably the most ideal weight. But anywhere in between 120 and 159 lbs is considered healthy.