I thought some of you might find this useful. It's a one rep max estimation chart for various exercises:
Repetitions Squat Benchpress Deadlift
1 1 1 1
2 1.0475 1.035 1.065
3 1.13 1.08 1.13
4 1.1575 1.115 1.147
5 1.2 1.15 1.164
6 1.242 1.18 1.181
7 1.284 1.22 1.198
8 1.326 1.255 1.232
9 1.368 1.29 1.232
10 1.41 1.325 1.24
There is also a more generic version here:
Repetitions Coefficient
1 1
2 1.07
3 1.12
4 1.15
5 1.18
6 1.21
7 1.24
8 1.27
9 1.30
10 1.33
How do you use these. Simple take an exercise, say the military press. Maybe you can do 5 reps at 200 pounds - you want to know what your one rep max is:
200 x 1.18 = 236
So your one rep max would be 236 pounds. Remember these charts just give you a guestimate and
your actual max may vary by +-5%.
These charts can be useful if you are using a powerlifting cycle to gain strength and you need to know what your one rep max is, or maybe you're just curious to see what your one rep max would be.
Hopefully one of the mods will put this up as a sticky.