Affinity vs Consanguinity Legal & Kinship Explorer
Genealogical kinship calculator: biological consanguinity vs marital affinity, Wright's coefficient ($r$), and 50-state marriage legality.
Pedigree & Kinship TreeAffinity (Step)
Wright's Coeff (r)
0.000
Shared DNA %
0.0%
Civil Law Degree
None
Canon Law Degree
None
Step-siblings share 0.0% biological ancestry ($r=0.0$). Because relation is purely affinal (by marriage of parents), marriage is permitted in all 50 US states unless a statutory co-adoption legally reclassified them as brother and sister.
50-State Statutory Marriage Matrix50 / 50 States Allowed