Admixture Calculator
Global Ancestry K40
Modern World K40 is a curated admixture calculator that parses autosomal DNA against 40 modern reference populations. Built for genealogists, adoptees, researchers and curious users worldwide, it delivers fine‑grained regional ancestry proportions and context—revealing multi‑regional heritage and signals of historical migrations while providing clear interpretation guidance and caveats.
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Target Region
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Chapter I
Calculator Details
Comprehensive information about this admixture calculator
About This Calculator
Modern World K40 is a curated genetic admixture calculator that decomposes an individual’s autosomal DNA into proportions across 40 thoughtfully selected, modern reference populations. Designed for a global audience—genealogists, adoptees, family-history enthusiasts, citizen scientists, and researchers—it transforms raw genotype data into an accessible, interpretable map of regional ancestry. The calculator compares your SNP profile to a dense panel of reference groups that represent major modern population clusters: multiple African lineages (hunter‑gatherers, Bantu, West Africa, Nilotic, Horn of Africa, North Africa), a fine-grained European set (Iberia, British Isles, Scandinavia, Italy, Balkans, Anatolia, Caucasus, Central and Eastern Europe, Basque, Sardinia and others), diverse Asian components (China, Northern China/Korea/Japan, East and Central Siberia, South and Central Asia, Persia, Tibet, Southeast Asia, Austronesian, Vietnam‑Dai), as well as representative Levantine, Arabian, North Levant/Mesopotamia, Central/Eastern Mediterranean groups, the Americas and Oceania.
What it analyzes: genome‑wide allele‑frequency patterns to estimate proportional ancestry and regional affinities. What you learn: primary ancestral components, subtle admixture signals, likely multi‑regional heritage, and patterns consistent with major historical processes (for example, Bantu expansion across sub‑Saharan Africa, Neolithic farmer movements from Anatolia, steppe‑related gene flow into Europe, Austronesian dispersals, and the peopling of the Americas).
Why it’s valuable: Modern World K40 strikes a balance between resolution and interpretability—providing more detail than broad continental tests while using curated, modern reference clusters that reflect recent population structure. Results are presented with contextual notes and interpretation guidance so users can place genetic signals alongside documentary genealogy, haplogroup data, and known migration history. Important: ou
Chapter II
Reference Populations
The populations used as genetic references in this calculator
40 Reference Populations
Africa
- African Hunter Gatherers: Indigenous groups with ancient lineages, traditionally living as hunter-gatherers.
- Bantu: Group associated with the spread of Bantu languages and cultures across Sub-Saharan Africa.
- Nigeria: Home to diverse ethnic groups and rich cultural heritage.
- Nilotic: Ethnic groups traditionally residing along the Nile, known for pastoralism.
- Horn-of-Africa: Region including parts of Ethiopia, Somalia, and Djibouti, known for its unique cultures.
- Western Africa: Region with a rich history of kingdoms and trade, consisting of diverse ethnic groups.
Europe
- Anatolia and Armenia: Historic region known for ancient civilizations and diverse cultures.
- Basque: Unique ethnic group with a distinct language, primarily in Spain and France.
- British Islanders: Inhabitants of the British Isles, including England, Scotland, and Ireland.
- Caucasus: Region located at the crossroads of Europe and Asia, notable for its ethnic diversity.
- Central Europe: Region with rich historical development, including countries like Germany and Poland.
- East Balkans: Encompassing countries like Bulgaria and Romania, known for diverse cultures.
- East Europe and Baltic: Includes countries like Russia and the Baltic states with Slavic and Baltic roots.
- East Siberia: Sparsely populated, home to indigenous Siberian groups.
- Finland: Known for its Uralic language and Scandinavian influence.
- France: Western European country with significant historical influence across the continent.
- Germanic Europe: Areas influenced by Germanic languages and cultures.
- Greece and Albania: Regions with ancient histories, Greece known for its classical history.
- Iberian Peninsula: Consists of Spain and Portugal, known for historical influence and diversity.
- Italy: Southern European country with a long history of influential civilizations.
- Levant; Arabia and Egypt: Culturally and historically rich region bridging Europe and Asia.
- North Levant and Mesopotamia: Cradle of ancient civilizations, including parts of Iraq and Syria.
- Sardinia: Italian island with unique cultural and genetic identity.
- Scandinavia: Comprising countries like Sweden and Norway, known for Viking history.
Asia
- Austronesian: Peoples spread across many islands in Southeast Asia and the Pacific.
- China: East Asian cultural and economic powerhouse with an ancient history.
- East and Central Mediterranean: Region with ancient history, significant cultural exchange.
- North Central Asia: Includes modern-day Kazakhstan, rich in nomadic history.
- Northern China; Korea and Japan: Regions with deeply interconnected histories and cultural exchanges.
- Mainland South East Asia: Includes nations like Thailand and Myanmar, known for diverse cultures.
- Persia: Region in modern-day Iran, known for its ancient empires and cultures.
- South Asia: Including India, known for its diverse cultures and ancient civilizations.
- South Central Asia: Region encompassing Afghanistan and Pakistan, known for varied cultures.
- Tibetan: Ethnic group primarily residing in Tibet, known for its unique culture.
- Vietnam-Dai: Southeast Asian regions known for vibrant traditions and history.
Americas
- Central and Southern Amerindian: Indigenous peoples of Central and South America with rich traditions.
- North America and Mexico: Diverse indigenous and mixed heritages spanning from the US to Mexico.
Oceania
- Oceania: Region encompassing the islands of the Pacific Ocean, known for indigenous cultures.
Unspecified Regions
- West Anatolia: Region with an ancient history, encompassing parts of modern-day Turkey.
- North Africa: Area blending African and Mediterranean cultures, from Egypt to Morocco.
Chapter III
Understanding Admixture Analysis
Learn how admixture calculators work and how to interpret your results
What is Admixture Analysis?
Admixture analysis is a method used to estimate your genetic ancestry by comparing your DNA to reference populations from around the world. Think of it as creating a recipe of your genetic makeup, where the ingredients are different ancestral populations.
This calculator uses 40 carefully selected modern populations as references, allowing for a detailed breakdown of your genetic heritage.
How It Works
- Your DNA is compared to 40 reference populations
- Modern populations are used as genetic references
- Results show your genetic similarity to these populations
- More accurate with a diverse reference panel
Understanding Your Results
Your results will show percentages of genetic similarity to these reference populations. Remember these important points:
- Results reflect genetic similarity, not direct ancestry
- Modern populations are used as references
- Percentages indicate relative genetic contribution
- Results are estimates based on available reference data