What runs in your browser
The conduit fill calculator, wire size calculator, and all wire fill chart pages execute entirely in your browser. We do not transmit your inputs — conduit type, wire gauges, counts — to any server. Refresh the tab and they're gone.
What we store locally
site-themein localStorage — remembers your dark or light mode preference. Cleared when you clear browser data.
Server logs
Our host receives the standard HTTP request log (IP address, user-agent, requested URL, timestamp). These logs are retained for a maximum of 30 days for security and abuse-detection purposes.
Cookies and analytics
If we enable analytics or advertising on content pages (blog, about), this section will list the cookies set and link to their providers' opt-out pages. Currently no third-party scripts are loaded on the calculator and chart pages.
Children
WireFillChart is intended for licensed and trainee electrical workers. We do not knowingly collect data from children under 13.
Contact
Privacy questions: privacy@wirefillchart.com.