Show HN: Free online calculators built with AI

Post by chux52 » Sat, Mar 21, 2026, 6:09 PM UTC

Post by fhouser » Sat, Mar 21, 2026, 6:16 PM UTC

chux52 wrote: post #2

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.

Post by chux52 » Sat, Mar 21, 2026, 6:52 PM UTC

fhouser wrote: post #3

chux52 wrote: post #2

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?