Plank Jack
How strong is your Plank Jack? Compare your lift against population strength standards and estimate your 1RM.
Muscles worked
Open the strength calculator →Plank Jack FAQ
How do I calculate my Plank Jack one-rep max?
Enter the weight you lifted and how many reps you completed into the strength calculator. It estimates your one-rep max and shows which tier — from beginner to elite — your Plank Jack falls into.
What equipment do I need for the Plank Jack?
The Plank Jack is a bodyweight exercise. You can log it and track your progress against strength standards in the free calculator.