emotionsbeginneruniversal
Es geht mir gut.
/ɛs ɡeːt miːɐ ɡuːt/
I'm doing well.
Literal translation
it goes me well
When to use it
Standard answer to 'Wie geht's?'. The German construction puts well-being as something that 'happens to' you.
In conversation
—Wie geht's? —Mir geht's gut, danke.
“—How are you? —I'm doing well, thanks.”