The Migration Era Calculator by Karl O. Högström is a free Global25 ancestry calculator (Calculateur, G25, Scaled). The purpose of this calculator is to analyse Migration Period samples and modern samples from Northern Europe. Its sources span the Alans, Huns, Goths and other Germanic peoples, the Celts of Britain and Gaul, the Roman Empire, Sarmatians, Scythians, Sakas, the Xiongnu, Uralic peoples, the Caucasus, Iran, the Levant and Han China, from about 300 BC to AD 550. Do not add any distance (DIST) in the settings. Metadata: Ethnicity/Location_Region_Country_Date_SampleID_mtDNA_Y-DNA. Its reference panel holds about 319 reference populations, grouped mainly as Celtic 250BCE-350CE, Germanic 0-550CE, Roman Empire 0-400CE, Uralic 100BCE-550CE, Xiongnu 280BCE-89CE, Han Empire 206BCE-220CE, Sarmatians 0-250CE, Sakas 300-250BCE.The panel was built or amended by Karl O. H.Last updated: November 2026 (version 2026.11).
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.