Toni Jaa
Creator of Arogun
About the Founder I built Arogun because I got tired of generic advice. Over the past 20+ years, I've approached both fitness and finances the same way I approach engineering: research the fundamentals, test them in the real world, measure the results, and cut what doesn't work. That mindset came from sport. I grew up competing in football, basketball, running, and table tennis, then spent years training in boxing, Muay Thai, MMA, Krav Maga, and Panantukan — alongside serious work in strength training and body transformation, tracking every calorie and weighing every meal through both muscle-building and fat-loss phases.
The same obsession carried into money. As a former e-commerce entrepreneur and current software engineer, I've dealt with business ROI, tax optimization, and the kind of financial decisions that don't come with a clean answer — just tradeoffs you have to actually understand.
Every calculator on this site is built from that combination: two decades of hands-on testing, a technical eye for accuracy, and a preference for tools that respect your intelligence. No filler. Just the math, done right.