There is no single "INTJ socionics type." The two systems are cousins, not twins — so an INTJ lands on one of 3 socionics types, and only your answers can say which. The candidates and their starting weights, stated openly:
People who test as INTJ usually land on one of two socionics types: ILI, when the decisive feel comes from a strong long-range vision, or LII, when it comes from a love of systematic order. A smaller number land on LSI, the rule-anchored executor.
The mechanical rule you'll see elsewhere — keep the letters, flip j/p for introverts — maps INTJ to ILI (socionics INTp). It assumes the two systems measure the same four dichotomies the same way. They don't quite: socionics builds its types from eight function positions, MBTI from four letter preferences, and the correspondence between them is genuinely contested — which is why every ≈MBTI equivalence on this site carries an asterisk (method §1).
The conversion test treats your MBTI as evidence rather than an answer: INTJ opens the candidate set above, ~20 targeted questions decide between the candidates, and if your answers point somewhere else entirely, they overrule the starting point — with a warning that says so.
Your answers decide between ILI · LII · LSI.
Take the 8-minute conversionWhichever candidate wins, the result is scored twice: MODEL A is the classical verdict; MODEL G is Gulenko's school reading the same answers as energy rather than information. When they split, you see the split — margins included, free. New to all of this? the basics →