About SizeAnswer
SizeAnswer is an independent reference site for sizes and units — built because most conversion sites are stuck in 1997, bury the answer under ads and essays, and barely work on a phone.
Where the numbers come from
Unit factors (inches, pounds, gallons, temperatures and so on) are exact international definitions — for example, one inch has been exactly 25.4 mm by treaty since 1959. Ring, paper and tire figures follow the published standards (ISO 8653 conventions, ISO 216, standard tire geometry). Shoe and clothing charts follow the most widely used international tables, with an honest warning on every page: brands deviate, so always check the maker’s own chart for the final call.
Found an error?
Tell us and we’ll fix it fast: hello@sizeanswer.com. Corrections are applied site-wide, not buried in a changelog.
The short version: we don’t want your data
No accounts, no tracking cookies, no analytics profiles, no pop-ups. Conversions happen in your browser; nothing you type is sent to us or anyone else. The site is hosted on standard web infrastructure, which keeps ordinary server logs (IP address, requested page) for security — that’s it.