Where I’m from, some people will still use feet/inches only for heights of human beings (weird, I know), but the most common response is in cm. For instance, if you asked me how tall I am I’d say 173cm, but I would say it like “I’m about a hundred and seventy-three” or “one-seven-three” - you don’t really have to say the units. Much the same as you’d say “I’m five foot seven” and you don’t need to specify “inches”.
Where I’m from, some people will still use feet/inches only for heights of human beings (weird, I know), but the most common response is in cm. For instance, if you asked me how tall I am I’d say 173cm, but I would say it like “I’m about a hundred and seventy-three” or “one-seven-three” - you don’t really have to say the units. Much the same as you’d say “I’m five foot seven” and you don’t need to specify “inches”.