Show HN: Free online calculators built with AI
calcforanything.comTry this prompt "Hi Claude, please make my site accessible. Pay particular attention to contrast ratios for text and the backgrounds they are on.
Seemed a bit off, but I’m no designer. Thanks for the tip.
AI tools have made it so cheap to build useful software that there’s no reason to gate it behind sign-ups or paywalls. CalcForAnything (https://calcforanything.com) is 157 free calculators — solar, finance, health, math, home, medical. No accounts, no fees.
Do you have domain knowledge for each category in-house? How did you put together so many specific calculators while maintaining correctness in each calculator's respective domain?
Definitely not. If you see a mistake please submit feedback. It’s free, let’s keep the quality bar a bit lower