How to use a 5/3/1 training max
Your training max is deliberately lower than a true one-rep max. A 90% training max is a common place to start; this calculator lets you compare it with 85% or 95% and rounds every result to practical plate increments.
Plan the work before you train
Use this 531 training max calculator page to check your four main lifts, choose the unit you use in the gym, and review the full cycle before your first session. The results are based on a training max, which keeps the prescribed work repeatable instead of treating every session as a test.
Keep the cycle practical
Review the rounded working weights before you load the bar and make a note of the settings you selected. When the cycle is ready, you can use the free planner for a complete session-by-session view or open the 531 app to keep your training maxes and logged work together.
Common questions
How do I use the 531 training max calculator?
Enter your current maxes, select your preferred unit and training-max percentage, then use the generated weights as your plan for the cycle.
Can I use kilograms or pounds?
Yes. The calculator supports both kg and lb and rounds results to practical barbell-loading increments.