Steps to reproduce:
Search "6 foot 2 to cm"
Kagi should interpret the statement as 6 foot and 2 inches to cm. Leaving off the "inches" is a rather common short form.
It would seem that Kagi instead interprets this as "6 foot, times 2. to cm" causing a result of 12 foot to cm.
Firefox, Windows 11, United Kingdom, EUROPE-WEST