Rapid Converter Tool
Free online financial, health, and loan calculators
What it does
Rapid Converter Tool provides a suite of fast, accurate, and easy-to-use online calculators, including EMI calculators, loan planners, and health trackers like BMI calculators, designed for users worldwide.
Free EMI, loan, BMI & tax calculators. Get instant, accurate results with no sign-up required.
Rapid Converter Tool gives you free calculators for loans, car finance, home mortgages, taxes, investments, BMI and everyday needs. Type in your numbers, get an instant, accurate answer — no sign-up, no spreadsheet, no guesswork. Every formula matches what a bank, a health chart or a tax table would show you, so the number you see here is the number you can actually rely on. One example profile, for illustration — pick a calculator below for your own numbers. Calculate your exact age in years, months, and days instantly from any country. Check your true Body Mass Index & ideal weight category accurately. Rapid Converter Tool exists because loan, mortgage and health numbers are usually…from rapidconvertertool.com
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Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
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 · 17d ago · simedw.com