Your inquiry, Rocky G., was "Can I use what's your height?" "What is your height OR How tall are you? Hello, Are they both correct? They are both correct. It's just that "what is your height" sounds like a question asked by someone who is filling out a form with your information." Yes, I would normally use "how tall are you?" But, both ways of inquiring in English will facilitate you getting the information that you seek. Isn't that the objective of asking?

As a native speaker of American English, I think the phrase "How tall are you?" sounds the most natural. Other forms of English may prefer "What's your height?" but I'd never say that.

Yes, you can! How tall are you? What's your height? They're well-known ways to ask.

Yes, "What's your height?" is natural and clear. However, "How tall are you?" is more commonly used in everyday conversation. Both are correct, but the latter might sound a bit more conversational.

Yes you can say what is your height, but the common collocation a native English speaker would use is "how tall are you?". What is the height of something is more commonly and usually used for buildings, structures etc. A doctor nurse or medical examiner might say "stand here I won't to measure your height". But "I won't to see how tall you are are" is how a native speaker would likely ask. Medical records and medical reports etc will record a persons height. I hope this helps with the subtle differences.