about how many years would it take 4c or kinky hair to reach bra strap length?

4 Answers

I think about 2 or so years. Give or take. Kind of depends on shrinkage and how much hair you have when you big chop.
I think it'll take 3 years. That's how long it took me to grow my hair to bra strap length when I was stretching my relaxers (my hair was very healthy). I obtained APL hair in 2 years and BSL in 3 years. I've been relaxer-free for 1.5 years now and my hair is at collar bone length. I believe I will reach APL at ny 2 year mark again and then if I retain my length through protective styling will be at BSL by my 3rd year natural. 
I agree totally, It does not only depend on how short your hair was cut (big chop) but on your hair  care maintenance but genetics has a lot to do with it as well.
Depends on the current length. Hair grows 1/2" per month if you're getting proper nutrition.