Calculator inputs stay in your browser
The calculators run on your device. The site does not send your entered values to a server or store them in cookies or browser storage. Reloading the page restores the example inputs. Avoid entering personal information into numeric fields.
No advertising or analytics scripts in this version
The site’s own code does not include analytics, advertising trackers, newsletter collection, or account registration. Images, fonts, styles, and calculator code are served locally rather than embedded from external media services.
Hosting and external links
The hosting service may process technical request information, such as IP address and browser details, to deliver and protect the site. Private access may also use authentication managed by the hosting service. Those hosting functions are separate from the calculator code.
When you follow an external reference, the destination site handles your visit under its own policies. We do not control that website.
Changes to this notice
If advertising, analytics, forms, or other data collection are added, this notice and any required privacy controls must be updated before they are enabled. This notice describes the current version. Updated 2026-10-02.