Rep Max Calculator

I use estimated rep and weight calculations multiple times a week in the gym and when planning out my training for the week. Some of the calculators out there are better than others. I’ve been using the one from All Things Gym for about a year, but I knew I could improve it. Since the author released all of the code on CodePen, I did just that.

I’ve improved the code to create my version of a rep max calculator and bought an obvious domain name – repmaxcalculator.com. Most of the time when I need an estimate I’m on my phone, so it was important for this to have a good mobile experience, which I think I’ve accomplished. If you’re using an iPhone, save it to your home screen so it launches just like an app, not in another Safari tab.

Try it out and let me know what you think. I’ve love to hear suggestions on ways it could be better.

1rm

Published by

Nick Momrik

I'm searching for the perfect golf swing and my first hole-in-one. I'm addicted to CrossFit. I work for Automattic.

One thought on “Rep Max Calculator”

  1. I understand the interest in these type of calculators. At one time, my personal fitness was largely defined by traditional body building techniques and whatever I saw in magazines. After being a personal trainer in Chicago for the last 10 years, though, my philosophy has changed quite a bit. I often wonder if the 1 Rep Max is more detrimental to the long-term health of your muscles. Considering the amount of inflammation and poor posture (think: sitting at your desk all day) in most bodies, any focus outside of muscular endurance may cause a tear, limited range of motion, or advanced dysfunction.

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