Great american analyze (by Erik Svensson) is a free Global25 ancestry calculator (Calculateur, G25, Scaled). Great American Analyze is a free Global25 (G25) ancestry calculator by Erik Svensson for Latin American, Caribbean and African American ancestry. It models your DNA with Indigenous American proxies (North America, Maya, Andean Quechua, Amazonian Guarani), colonial Spanish, Portuguese and British settlers, West and Central African proxies, colonial casta mixes (mestizo, castizo, mulatto, zambo, morisco, chino) and modern admixed populations from Mexico, Peru, Colombia, Brazil, Puerto Rico, Argentina, Chile, Guatemala and the United States. Its 25 references are simplified proxy profiles, so read the result as a broad overview. Paste your scaled G25 coordinates to get your best-fit mix, computed directly in your browser. Its reference panel holds about 25 reference populations, grouped mainly as Indigenous North America Averages, Indigenous Central America Maya, Indigenous South America Andean Quechua, Indigenous South America Amazon Guarani, Colonial Spanish Settler, Colonial Portuguese Settler, Colonial British Settler, West African Slave Trade Yoruba Proxy.The panel was built or amended by Erik Svensson.Last updated: October 2026.
People who already have their Global25 (G25) coordinates, for example from a raw DNA file converted with our G25 coordinates service, and want to see how a specific reference panel reads them. Different calculators use different panels, so the same person can get different percentages, and comparing several is more informative than trusting one.
Paste your coordinates, choose a run mode and start the calculation. Each result line is a reference population followed by the share of your ancestry it explains, the shares add up to 100%. Very small shares (below roughly 1 to 2%) are usually noise rather than real ancestry. The distance value tells you how well the mixture reproduces your coordinates: the lower, the better, and a high distance means this panel does not describe you well. For example, a result of "Polish 60 / Ukrainian 25 / Lithuanian 15" means your coordinates are best rebuilt from those three populations in those proportions, not that you descend from three separate groups.
Everything runs in your browser and nothing you paste is uploaded. Browse all Global25 calculators, or let the free Report Finder tell you which regional report fits your ancestry.