The Epley 1 Rep Max formula estimates how much the weight lifter could have lifted one time (RM) based on the maximum number of reps (r) of a lesser weight (w). This method is used in some competitions and in many gyms to avoid injuries and to provide a more consistent measure of endurance and strength.

One-repetition maximum (one-rep max or 1RM) in weight training is the maximum amount of weight that a person can possibly lift for one repetition. It may also be considered as the maximum amount of force that can be generated in one maximal contraction.

What does it mean? See information about 1 rep max. This calculator is based on the formula derived by Boyd Epley in 1985, which is: 1RM = weight x (1 + (reps / 30)) Reference. Epley, B. Poundage chart. In: Boyd Epley Workout. Lincoln, NE: Body Enterprises, 1985. p. 86.

Aug 14, 2024 · The following steps outline how to calculate the One-Rep Max (1RM) using the Epley Formula. First, determine the weight lifted (W) in pounds. Next, determine the number of repetitions (R) completed.

Epley formula: How to calculate one-rep max? What percentage of my one rep max should I lift? How to increase one-rep max? One of the most popular phrases used in sports is "push your limits" - and our one-rep max calculator is here to help you find out what they are.

The formula calculates the 1rm using the total weight you can raise during a move given to you and the number of reps that you can do before tiredness or slowing down. Let's make sure you can make 220 pounds for 10 reps for the chain.

Oct 3, 2024 · Calculation Formula. The Epley Formula for estimating the 1RM is as follows: \[ 1RM = \text{Weight Lifted} \times \left(1 + 0.0333 \times \text{Reps}\right) \] Where: 1RM is the estimated one-rep max in kilograms. Weight Lifted is the weight the athlete successfully lifted for multiple repetitions. Reps is the number of repetitions completed ...

Feb 17, 2025 · The Epley Formula is straightforward and widely used. It provides an estimate of your 1RM based on your ability to lift a certain weight for multiple repetitions: Formula: 1RM = W × (1 + (R / 30))

Oct 11, 2023 · The Epley formula is a mathematical model employed to approximate one’s one-rep max (1RM) based on the number of repetitions and the weight used in a given exercise. Its origins trace back to Dr. W. Ben Kibler and it was subsequently popularized by Dr. William Epley.

Aug 22, 2023 · Perhaps one of the most commonly employed formula for estimating a 1RM - the Epley formula simply involves multiplying load lifted by a coefficient aligned with the number of repetitions that are performed during the testing set.