A 1RM Calculator estimates the maximum weight you can lift for one repetition of an exercise like a bench press, squat, or deadlift. This tool is vital for setting training goals and assessing strength levels.
Enter the weight you lifted and the number of repetitions you performed. Select a formula, and the calculator will estimate your 1RM.
Your one-rep max helps design effective workout programs, track progress, and prevent overtraining by understanding your strength limits.
Our calculator supports three formulas: