1. $535.00 for the I-129F.
2. $265.00 Visa Fee per applicant which is paid after filing the DS-160. So, if your Fiance has a child who is coming to the US, then you must pay $265 for the child as well.
3. Medical Exam with a consulate doctor – depends on the country – but it can range from $50 – $300.
4. Miscellaneous – translation services, photocopying, obtaining documents (e.g. passports, birth certificates, police clearance certificates, etc.); boarding (if the consulate is far from Fiance’s home) and finally travel expenses to the US consulate and eventually to the U.S.