Privacy policy

Calculator data

Calculator measurements and results are processed in your browser. The site does not require accounts or submit calculator entries to us or Google Analytics. Do not enter names, email addresses, or other personal information into calculator fields.

Optional Google Analytics

If you accept analytics through the site's consent controls, we use Google Analytics to understand how the site is used. Google Analytics may process information such as pages visited, approximate device and browser information, referral information, and usage interactions. We do not intentionally send names, email addresses, or calculator input values to Google Analytics.

Analytics and advertising-related Google consent states are denied by default. Choosing “Accept analytics” permits analytics storage and measurement; advertising storage, advertising user data, and ad personalization remain denied because the site does not use advertising features. If you decline before the Google Analytics tag has loaded, the tag will not load. If you later revoke consent, further Google Analytics measurement is disabled and future pages do not load the tag.

Your analytics choice is stored in your browser's local storage so we do not ask on every page. You can decline or change your choice at any time by selecting Privacy settings in the footer.

Cloudflare Web Analytics

We also use Cloudflare Web Analytics for aggregate page-usage and site-performance measurement. Cloudflare describes this service as privacy-focused and says it does not use cookies, local storage, or fingerprinting to collect usage metrics. This service is separate from the optional Google Analytics consent choice.

Basic hosting information

A hosting provider may process standard technical logs—such as IP address, request time, requested page, browser information, and security events—to deliver and protect the site. Retention and handling depend on the eventual hosting provider.

Email

If you email us, we receive the address and information you choose to provide so we can respond. Do not send sensitive information. We may retain correspondence when reasonably needed for support, safety, or recordkeeping.

Other services

The site does not currently use advertising or affiliate tracking. If other third-party services are enabled later, this policy and any required consent controls will be updated before or when those services become active.

Contact

Privacy questions can be sent to [email protected].