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The simplest way to calculate your max heart rate (HRmax) is 220 minus your age. But other formulas like the Tanaka formula (208 – 0.7 × age)…

Dining out in Seattle last week, I faced a very annoying glitch. My friends waited while I tried to split the check on my wrist. It is…

Starting my day in Manchester, I noticed my old friend, my Casio CA-53W, was acting up. I tried to tap in a quick sum, but the keys…

Last Tuesday morning in Dallas. Desk pushed back. Playlist ready. I stepped on my YAGUD walking pad ready to walk through my morning inbox. Pressed the power…

Last Tuesday morning in Denver, I stood there in my workout gear at 6:15 AM. Fresh coffee sat on the counter. I pressed the button on my…

Last Monday morning in Portland. Coffee still hot. Email inbox already full. I stepped on my under desk treadmill, pressed the remote power button, and… nothing. My…

Dealing with a Casio AE-1200WHD-1AVEF not working is a right pain when you rely on its world time features. While I was living in London, my own…

Do you ever ask yourself, “What is my suit size?” A suit size calculator gives you a quick answer. It’s a smart online tool that helps you…

Do you want to know how to calculate a golf handicap? I remember when I first started playing golf, I had no clue what a handicap meant.…

As a calculator expert, I’ve spent years testing models across brands like Casio, TI, and HP. When I picked up the CATIGA CS229 Scientific Calculator, I was…

Staying in Stuttgart for a work trip reminded me how much I value tools that stay reliable. I found my old school math kit in a box,…

If you’re into fitness, you’ve likely heard the term VO2 max. But what does it actually mean, and how do you calculate it? In simple terms, VO2…