Hey PH! I'm Gabe, a chemical engineer who got fed up with the wellness industry's vague advice and affiliate-loaded "calculators" that exist to sell supplements. I built these 106 calculators as part of Catalyst OS, a life optimization platform I'm building solo. Every calculator uses real formulas (Mifflin-St Jeor for BMR, Navy method for body fat, Epley for 1RM) with full transparency — no black boxes. The calculators are 100% free with no signup wall. If you create an account, you can save results and have the AI reference your data in conversations, but the tools work without any of that. I also run an AI consulting practice building automation systems for businesses — the platform itself is my portfolio. If you're curious about the tech stack or architecture, happy to answer questions. Would love feedback on which calculators you find most useful and what's missing from the suite.

The Catalyst Project

106 free calculators across fitness, finance, mind, and more

106 free calculators across fitness, finance, mind, and more