Hey everyone! I'm Abdilahi, the developer behind UnitFormula. I built this because every unit converter I found online gave me "1 lb = 0.4536 kg" and stopped there. I wanted to know why that specific number, where it came from, and when the conversion actually matters in practice. So I built UnitFormula with 2,000+ words of expert content per conversion — covering history, industry context, worked examples, common mistakes, and FAQs. Every page has 4 structured data schemas for search engines, and every calculator handles real-world complexity (like 3-phase AC power with power factor, not just simple multiplication). What's live right now: - 187 conversion pairs across 18 categories - 44 interactive calculators (electrical, finance, health, construction, cooking, math) - 30 educational guides - 50 long-tail value pages for the most-searched specific conversions The whole thing is free, no login required, no ads (yet). Built with Next.js 15, fully statically generated, sub-second load times. I'd love feedback on: 1. Are there conversions or calculators you wish existed but can't find online? 2. How does the content depth feel — useful or overwhelming? 3. Any categories I'm missing? Thanks for checking it out!

UnitFormula

The unit converter that actually explains the conversion

The unit converter that actually explains the conversion