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Lander's Formula

Last modified by
on
Jun 8, 2023, 6:06:23 PM
Created by
on
May 18, 2016, 5:51:14 PM
MaxWeight=100w101.3-2.67123r
(w)Weight Lifted
(r)Rumber of Reps
Tags
UUID
1d31bee0-1d21-11e6-9770-bc764e2038f2

The Lander's Max Weight calculator computes the approximate maximum weight one can lift using the Lander's formula.

INSTRUCTIONS: Choose your preferred units and enter the following:

  • (w) This is the weight lifted in repetitions.
  • (r) This is the number of reps.

Max Weight:  The calculator returns the approximate max weight in pounds.  However, this can be automatically converted to other mass or weight units (e.g. kilograms) via the pull-down menu.

Math / Science

The Lander's One Rep Max formula is:

   1RM=w1.013-(0.0267123r)

where:

  • 1RM is the one rep maximum
  • w is the weight lifted in multiple reps
  • r is the number of reps

Max Repetition Weight formulas like Lander's are intended to provide an estimate on the maximum weight one can lift without having to attempt such a lift.  The motivation is to avoid injuries associated with lifting one's max.

This is a derivation of the One-Rep Max calculation

/attachments/1d31bee0-1d21-11e6-9770-bc764e2038f2/2d15b85.jpg J Lander 

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