Calculator information
The current calculators run in your browser. Values entered into calculator controls are used on the page to produce results and are not sent by the website's code to a server or saved in cookies, local storage, or session storage.
Analytics, cookies, and advertising
The current website code does not include analytics software, advertising scripts, tracking pixels, or code that sets cookies. Some pages contain reserved advertising placeholders, but Google AdSense or another advertising network is not currently loaded by the website.
Google Fonts
The website loads the Inter and Space Grotesk typefaces from Google Fonts. When a page loads, your browser requests font-related files from fonts.googleapis.com and fonts.gstatic.com. Those requests may provide Google with standard network information such as your IP address, browser details, and request time, subject to Google's own privacy practices.
Hosting and network requests
The website is hosted on Vercel. Serving a webpage necessarily involves network requests to the hosting provider. The repository does not contain custom code that reads or stores hosting logs, but Vercel may process standard request information under its own service and privacy terms.
External links
Some pages link to third-party websites, including Amazon and EnergySage. Following an external link takes you to a service with its own privacy practices. The current outbound URLs do not contain identifiable affiliate tracking parameters.
Future changes
If analytics, advertising, affiliate tracking, email delivery, or another data-processing service is added later, this policy should be updated before or when that technology is enabled.
Last updated October 6, 2026.