CalcHub
57+ free, ad-free calculators for finance, math, & health
What it does
CalcHub is a free collection of 57 fast, ad free calculators covering finance, health, math, and everyday tools BMI, compound interest, GPA, & more. As a student developer, I built every calculator and page myself to fix what bugs me about existing sites: bloated ads, pop ups, and slow load times. CalcHub requires no sign-up just instant, accurate results. I’d love your feedback! Which calculators are most useful to you, and what should I build next?
57 free educational and utility calculators for finance, health, math, science, and education fast answers, no sign-up, with your history and favorites saved automatically.
Finance, math, science, health, education tools, and everyday tools with your history, favorites, and recents savedfrom calchub-9k8.pages.dev
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Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
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