It parses the request as 120m for me (and presumably the submitter), resulting in 4724 inches rather than 47.24.

Yeah, I'm not really sure why people are talking like this feature on Google isn't working. We must be missing something... (unless it was a transient bug).

To me, google shows a conversion tool: "120 metres = 4724,409 inches".

Note that it confused the unit cm vs m.