CalculatePilot
158 free calculators, every formula explained, zero signup
9 followers
158 free calculators, every formula explained, zero signup
9 followers
CalculatePilot is a free collection of 158+ calculators covering finance, health, math, and everyday decisions — mortgages to macros to matrix math. No account, no paywall, and every result comes with the formula and methodology explained, not just a number.
Love that the formulas are shown alongside results — way more useful than a black-box answer. One idea: add a "save my last inputs" feature so you don't have to retype values when revisiting a calculator the next day.
@corin_du Love this idea, Alexandria — just shipped it! 🎉
Any calculator will now remember your last inputs automatically (stored locally in your browser, nothing sent to a server), and there's a small "reset to defaults" link if you want a clean slate. Try changing some numbers on the mortgage or compound interest calculator, close the tab, and come back — should pick up right where you left off.
Appreciate you flagging it — exactly the kind of feedback that's useful. Let me know if it's working the way you pictured it!