BMI Calculator
Free Body Mass Index Calculator for Adults & Children
What it does
Calculate your BMI instantly with our free Body Mass Index calculator. Works for adults and children ages 2–19. Get your BMI category, healthy weight range, ideal weight, and personalized health tips. US and metric units supported.
Enter your email to download a clean PDF of your results — and get personalized health tips delivered to your inbox. Your email has been saved. Your BMI report is downloading now. Free Body Mass Index calculator for adults and children ages 2–20. US and metric units. Includes healthy weight range, ideal weight, BMI history, and personalized guidance. Medical Disclaimer: This BMI calculator is for informational and educational purposes only. BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, body fat distribution, age, sex, or ethnicity. Always consult a licensed healthcare provider before making any health decisions. Body Mass Index (BMI)…from calcxi.com
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is
Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 26d ago · baselashraf81.github.io
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Life & fun · 10d ago · louisabraham.github.io
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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
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com