The lower the BMI the more difficult it is to Bench compared to someone with the same weight and higher BMI.
A. 5'11" 145= 20.2 BMI B. 5'0 145 = 28.3 BMI I created a factor spreadsheet just based off years of experience to use that helps find the equivalent lift. Most, if not all bench press contests simply use bodyweight for categories but neglect BMI. Lifter A compared to Lifter B would have a better overall performance even if they both lifted 200lbs.
I was able to bench 250@ 145BW - 21.4 BMI.
BMI of 26 or less uses a multiplying factor. 250 bench @ BMI of 21.4 = 324. There are also age graded calculators that can be applied to the performance as well. It uses the standard Wilks formula scores and applies age Coeff.
http://tsampa.org/training/scripts/relative_strength/
None of this really matters- truth is I benched 250. Just fun to be strong and try and max out your potential just like with running.
Careful with these type of calculators that tend to overestimate your max lift potential if you are and endurance athlete/runner. I can bench 175 for 20 reps: calc. estimates- (282) and 205 for 10 reps estimates-(272) There is no way I can bench press that much weight for a one rep max.
http://www.muscleandstrength.com/tools/bench-press-calculator.html