Genealogy & Family History

Genealogy calculators for DNA matching, ancestor counts, cousin relationships, family tree completeness, and historical records.

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Estimate the likely family relationship from shared centiMorgans (cM) and DNA segments.

Calculate the theoretical and adjusted number of ancestors across generations, accounting for pedigree collapse.

Estimate arrival dates and assess record availability for immigrant ancestors based on departure year and ship type.

Track your family tree research progress across 5 generations with per-generation completeness scores.

Determine the exact cousin degree and removal between two people based on their common ancestor.

Calculate the average generation length in your family line and project ancestor birth years further back in time.

Estimate expected ethnicity percentages based on grandparent origins. Understand admixture and genetic heritage distribution.

Convert historical currency amounts to modern values using average inflation rates for USD, GBP, and EUR.

Determine which census records your ancestor should appear in based on birth year, death year, and country.

Estimate how common a surname is based on length, origin region, and historical period. Get spelling variation counts.