How old is the "Conan" character?

Assuming you mean the "barbarian"

1932

https://en.wikipedia.org/wiki/Conan_the_Barbarian

That Conan the Barbarian from 10,000 BC in the comics but I mostly know that Arnold and Jason Mamoa played his character right in the movies

google it.... googling it wouldve been faster than asking the question

Detective Conan? In Volume 1, File002, he gives his age as 16 (his actual age) and the corrected it to 6 (as his apparant age in his child form). In the manga's current time, he's 17 and 7 respectively.

'Conan' the barbarian OR 'Conan' the late-nite talk-show host ???