Small, exact tools for everyday numbers.
Free calculators for money, health, dates, and everyday measurement — no sign-up, no data stored, just quick answers.
NO DATA STORED
Every calculation runs in your browser. Nothing you type is saved or sent anywhere.
FORMULAS EXPLAINED
Every tool shows exactly how the number was calculated — no black boxes.
FREE, NO SIGN-UP
No account, no email, no paywall. Just open a tool and use it.