Small Insular Celtic Calculator (by Insular Kev) is a free Global25 ancestry calculator (Calculateur, G25, Scaled). Small Insular Celtic Calculator is a free Global25 (G25) ancestry calculator by Insular Kev. It focuses on Celtic and British Isles ancestry. It models your coordinates with 7 reference populations, including Irish, Scottish, Welsh, Orcadian and English. Paste your scaled G25 coordinates to get your best-fit ancestry mix, computed directly in your browser. Its reference panel holds about 7 reference populations, grouped mainly as Irish, Scottish, Welsh, Orcadian, English, Anglo-Saxon Proxy(Dutch), Norse Proxy(Norwegian).The panel was built or amended by Insular Kev.Last updated: September 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.