MBTI USA

Free calculator

MBTI Compatibility Calculator

Pick two of the 16 MBTI types and see the compatibility signal instantly — cognitive fit, conflict style, and where you grow each other.

How the calculator works

Cognitive function fit

Types whose dominant functions interlock (e.g. INFJ's Ni with ENFP's Ne) score highest. The classic 'golden pair' dynamic.

Shared dimensions

Each shared letter (I/E, S/N, T/F, J/P) adds to ease of everyday alignment — similar rhythms, less translation overhead.

Growth edges

Dimensions you don't share are where friction lives — but also where you grow each other most. Most long-term pairs thrive here.

Relationship pattern

Compatibility is easier to read when you know your attachment pattern.

Use this free self-assessment to compare how closeness, reassurance, and conflict feel in relationships. Educational use only, not a diagnosis.

Take the attachment test

Want your own four-letter type first?

The calculator is more useful when you're sure. Take the free 5-minute test to confirm your type, then use it here for real compatibility readings.

Take the free MBTI testBrowse all 16 types

Sources

Evidence used for this calculator.

MBTI can help describe attraction patterns and friction styles, but it should not be used as a hard rule for whether a relationship will work. Shared values, attachment patterns, communication habits, and investment matter more than a four-letter pair.