5/3/1 Calculator
Find Wendler 5/3/1 working weights from your 1RM.
Jim Wendler's 5/3/1 program bases all working sets on a 90% training max.
The math behind it
Training max = 90% of 1RM. Week 1 sets are 65%, 75% and 85% of that training max.
Worked example
100 kg 1RM → TM 90 kg; week 1 sets 58.5, 67.5, 76.5 kg.
FAQ
Why use a training max?
Submaximal training leaves room for steady, sustainable progress.