How to Use the Epley 1RM Calculator

Choose a Weight You Can Lift Comfortably for a Few Reps
Find a weight that you can lift for 1–10 repetitions with good form. This weight should challenge you but allow you to complete at least one rep safely.

Enter the Weight
Type in the amount of weight you lifted.

Enter the Number of Reps
Type in the number of repetitions you completed with that weight. Aim for a rep count between 1 and 10 for the most accurate results.