Pull-Up & Calisthenics 1RM Calculator
Calculate your True One Rep Max for Weighted Pull-Ups, Chin-Ups, Weighted Dips, and Muscle-Ups.
Enter Parameters
Substantial pulling power and strong scapular depression.
Why Total Mass is Essential for Calisthenics 1RM
Common 1RM calculators fail on bodyweight movements because they only calculate based on the added plate, ignoring that your muscles are also pulling your entire body against gravity.
The Correct Formula
To calculate calisthenics 1RM accurately: Total System Mass = Bodyweight + Belt Weight. Next, apply Epley: Total 1RM = Total Mass × (1 + Reps / 30). Finally: Added 1RM = Total 1RM - Bodyweight.
Frequently Asked Questions
Key questions on calisthenics and weighted pull-up 1RM calculations.
Yes. If you perform 15 bodyweight pull-ups at 75 kg with 0 added weight, the calculator treats total mass as 75 kg, projecting a 1RM total capacity of 112.5 kg (meaning you could pull yourself with ~37.5 kg on a dip belt).
Rest the belt firmly above the iliac crest (hip bones) and keep the weight chain short enough so the plates hang between the upper thighs rather than swinging below the knees.