Convert INFP to socionics
Your four letters are INFP
About eight minutes.
INFP does not convert to one socionics type, so this quiz decides between the three it can be: INFj, INFp and ENFp. The 20 questions are chosen for your four letters and ask about the places those candidates actually differ, not the places the letters already agree.
Socionics writes the last letter small. It's not your MBTI letter.