One rep formula

[Vicious cycle]

What is the mathimatical formula for figuring out your one rep max?

 

[The Shadow]

10 reps - 1.33 times the weight
9 - 1.30
8 - 1.27
7 - 1.24
6 - 1.21
5 - 1.18
4 - 1.15
3 - 1.12
2 - 1.07

 

[H_T_]

10 reps - 1.33 times the weight
9 - 1.30
8 - 1.27
7 - 1.24
6 - 1.21
5 - 1.18
4 - 1.15
3 - 1.12
2 - 1.07

lmao, i memorized that smae chart!

 

[b fold the truth]

The formula is to put weight on the bar till you can only do 1 rep. That is the ONLY TRUE 1RM Calculator.

I've flat benched 251 x 20 a couple weeks ago and according to the chart that gives me well over a 500 pound bench...which is FAR from true. The same goes for about every exercise I've found.

B True

 

[The Shadow]

its pretty accurate for 10 reps and less...and 20 reps at 251 would be about 409, which is pretty close isnt it?

 

[b fold the truth]

its pretty accurate for 10 reps and less...and 20 reps at 251 would be about 409, which is pretty close isnt it?

I don't have the calculator that I've been using lately handy...but it shows 20 reps with 251 like 505...or was it more...can't remember.

low 4's would be accuratte for me though.

B True