HGDP K12

The HGDP K12 calculator estimates an individual’s genetic ancestry by comparing their genotype to a curated set of global reference populations derived from the Human Genome Diversity Project (HGDP). Using a 12-component clustering model tailored for modern populations, it quantifies proportional ancestry signals tied to geographically and historically meaningful groups — for example Gambian and Esan (West Africa), Luhya (East Africa), Bedouin (Near East), Irula (South India), Kalash (Central/South Asia), Dai and Japanese (East Asia), Finn (Northern Europe), Karitiana (Native American) and Papuan (Oceania) — plus broad “African (Continent)” representation. The calculator is designed for a worldwide audience: geneticists, population historians, genealogy enthusiasts, students, and curious individuals who want a clearer picture of deep and recent biogeographic ancestry.

Outputs are proportional estimates that highlight major ancestral components in a person’s genome and show how those components map onto historical migrations, population structure, and regional admixture. Users gain insight into continental and subcontinental affinities, detect traces of ancient gene flow (e.g., Eurasian–African exchanges), and compare personal results to known population signatures. The tool contextualizes findings with plain-language explanations so both technical and nontechnical users can interpret results responsibly.

Like all admixture tools, the HGDP K12 model provides probabilistic estimates rather than definitive “labels.” Results depend on the chosen reference set and model assumptions; shared ancestry, recent admixture, genetic drift, and limited reference sampling can blur component boundaries. Despite these limits, this calculator is valuable because it combines a well-documented HGDP reference framework with an intuitive K=12 breakdown, making it useful for exploratory research, teaching, or personal discovery. It helps translate complex population genetics into action