What the calculator does with your inputs
Weight, height, boot size, and board specifications are calculated in your browser. The site has no server-side calculator, account system, database, form submission, or custom analytics event that receives those measurements.
Local browser storage
The site may save one preference named slc-units so it can reopen in imperial or metric units. It does not save your measurements. The footer control on the calculator clears this preference.
Share links
The Share setup button puts the current inputs in the URL fragment after the # character. A URL fragment is handled by the browser and is not part of the HTTP request sent for the page. Anyone who receives the copied link can read the values in that link. Editing an input removes the shared fragment from the address bar.
Hosting and standard request data
Cloudflare hosts and protects the site. Like other web hosts, it may process standard request information such as IP address, requested path, user agent, timing, and security signals to deliver and protect the service. This site does not add a third-party analytics script, advertising pixel, cookie banner, or measurement event.
External sources
Source links open third-party manufacturer and retailer websites. Their privacy practices apply after you follow those links.
Changes
This notice will be updated if the site begins collecting information or adds a new storage mechanism. Last updated August 15, 2026.