Is it gramatically correct to say Where it is at?

Answer 1

Because the word "at" is a preposition and it is considered grammatically incorrect to end a sentence with a preposition.

No. It is wrong because the "at" is unnecessary. An English sentence may properly end with preposition, for example: Forcing English to comply with Latin grammatical rules is a school-marm trick that no natural speaker puts up with.

Answer 2

No.

Either "Where is he, today?" if you are asking about his geographic location,

or "What is he doing today?" if you are asking about his activities,

or "How is he feeling today?" if you are asking about his mental state.

Where he's at is a non-standard form of speech.

Answer 3

Not in Standard English, and certainly not in reference to a thing's location The construction "where it is at" may be used by well-spoken hipsters, but only in reference to a thing's nature, purpose or condition. Thus we may say that smoking tobacco is not where it's at, meaning it has no cool, no cachet. Bob Dylan's line "He really wasn't where it's at" means he was not the right one.

Answer 4

Where is it? is the correct form. Omit at.

Answer 5

No, it is not. The correct sentence is "Where are you?"