Formal:
* حال شما چطور است؟ (Haal-e shoma chetor ast?) - This is the most formal and polite way to ask. It literally translates to "How is your state?"
* خوب هستید؟ (Khoob hastid?) - This means "Are you well?" and is still very polite.
Informal:
* چطوری؟ (Chetori?) - This is a casual way to ask "How are you?"
* خوبي؟ (Khoobi?) - This is a casual and friendly way to ask "Are you okay?"
More casual:
* حالت چطوره؟ (Haalat chetore?) - This is more informal and friendly, similar to "How's it going?"
* خوبي؟ (Khoobi?) - This is the same as the informal "خوبي؟" but can be used between friends or family.
Remember to use the appropriate level of formality depending on who you are talking to.