Privacy Policy
Calculations stay on your device
Every calculator on this site runs locally in your browser. The values you type are not sent to our servers, are not stored, and are not linked to you. You can use every tool without an account.
Cookies and analytics
The site may use privacy-respecting analytics to understand which pages are useful. Where advertising is shown, the ad provider may use cookies under its own policies; ad slots are kept away from calculator inputs and results.
Contact data
If you email us, we use your address only to reply to your question. We do not sell or share contact details.