Enter the weight lifted and the number of repetitions performed into the calculator to estimate your one-rep max for the leg press exercise.

Leg Press Max Formula

The following formula is used to estimate the one-rep max (1RM) for the leg press exercise:

1RM = W * (1 + R / 30)

Variables:

  • 1RM is the estimated one-repetition maximum (pounds)
  • W is the weight lifted (pounds)
  • R is the number of repetitions performed

To estimate the one-rep max for the leg press, multiply the weight lifted by the factor of (1 plus the number of repetitions divided by 30).

What is a Leg Press Max?

The leg press max is an estimate of the maximum amount of weight one can lift for a single repetition on the leg press machine. It is a useful measure for strength training and tracking progress. The one-rep max is often used to set training loads for various strength training programs.

How to Calculate Leg Press Max?

The following steps outline how to estimate the Leg Press Max:


  1. First, determine the weight lifted (W) in pounds.
  2. Next, determine the number of repetitions performed (R).
  3. Next, gather the formula from above = 1RM = W * (1 + R / 30).
  4. Finally, calculate the estimated one-repetition maximum (1RM) in pounds.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Weight lifted (W) = 200 pounds

Number of repetitions performed (R) = 5