Clamshell
How strong is your Clamshell? Compare your lift against population strength standards and estimate your 1RM.
Muscles worked
Open the strength calculator →Clamshell FAQ
How do I calculate my Clamshell 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 Clamshell falls into.
What equipment do I need for the Clamshell?
The Clamshell is a bodyweight exercise. You can log it and track your progress against strength standards in the free calculator.