Your privacy matters
This app does not collect, store, or share personal user data directly through the calculator experience.
Calculation history is stored locally in your browser using local storage so it remains available on your device after reload.
This app may display ads through Google AdSense or similar ad services. Those services may use cookies or device-level information as described in their own privacy policies.
By using this calculator, you understand that any third-party advertising provider operates under its own terms and privacy practices.