This seller published no size chart, so foot lengths are typical for the size — individual shoes can run about half a size either way. US and UK are worked out from that length.
Warm tips: All are measured manually in a flat-laid position, with an allowable error of some 1-3cm (0.4-1.2 in) (0.4-1.2 in). All dimensions are subject to the actual object. Unit: cm