Your numbers are yours.

Calculations happen on your device. We do not receive your grades, prices, times, inputs, or results.

Last updated: November 6, 2026.

Calculator data

Values are processed locally in the page. We do not put them in URLs, save them to localStorage, send them to a server, or retain a calculation history. Reloading or closing the page clears the inputs. Copy and print happen only when you ask.

Hosting and essential requests

Cloudflare delivers the site and may process technical request information, including IP addresses and browser information, to provide and secure the service. Page delivery does not include calculator values. See Cloudflare’s privacy policy. Fonts and scripts are served from this site.

Ads and optional analytics

Both are disabled in this release. No ad scripts, analytics beacons, session recording, or form-content collection are installed. The event hooks in our code do not send network requests. If optional services are added later, we will identify the providers, update this notice, and configure applicable consent choices before activation. Refusing optional tracking will not prevent calculation.

Contact

A public contact email will be added before the full launch. This preview is not open for search indexing.