All calculators run entirely in your browser. Room dimensions, model numbers and every other input are processed locally in JavaScript and are never transmitted to our servers or any third party.
To preselect US or India mode, the site reads your browser's timezone/language settings and, when served through our CDN, the two-letter country code the CDN attaches to the request (/cdn-cgi/trace). No IP address is stored by us. Your manual choice of region and theme is saved in your browser's localStorage only.
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