1rm.js

Estimate one rep maximum lifts in JS using a variety of formulas

Setup

$ npm install 1rm

var rm = require('1rm');

Formulas

• epley: Epley
• brzycki: Brzycki
• lander: Lander
• lombardi: Lombardi
• mayhew: Mayhew et al.
• oconner: O'Conner et al.
• wathan: Wathan

API

{{method}}(weight, reps) -> Number

Accepts weight and reps both Number and outputs the estimated one rep maximum (also Number). For browser use, make sure to parse your numeric inputs. Numeric strings are not supported.

Example

rm.epley(400, 4) // 453.33...