The short answer: AncestryDNA does not and cannot give you Global25 coordinates. No testing company does. What AncestryDNA gives you is a raw data download, and that file is what the independent Eurogenes Global25 service turns into a coordinate row. This guide covers the AncestryDNA-specific half of the route; the full background — what a coordinate is, who produces one, scaled vs unscaled, real vs simulated — is in the main guide.
Step one: download your AncestryDNA raw data#
On your DNA results page, go to Settings → Download DNA Data. Unlike most vendors, Ancestry does not hand you the file immediately: it emails a confirmation link first, and the download is only released after you follow it. If nothing arrives, check spam before assuming the request failed — the whole flow silently stalls on that one email.
The download is a .zip holding a .txt file of genotype calls. Keep it somewhere stable; it is
the input to everything below.
What is actually in an AncestryDNA file#
AncestryDNA's chip carries strong autosomal coverage — the part a Global25 coordinate is computed from — which is exactly what you want here. Files differ by chip generation, and coverage is what decides which analyses a file can support, so before sending it anywhere it is worth seeing what it holds: our free raw DNA file check parses the file, reports the detected format and counts usable markers per chromosome. Nothing is ordered and nothing is stored.
An AncestryDNA file also works in our free Y-DNA clade finder — with the caveat that consumer chips test a limited set of Y positions, so the depth you can reach is set by the markers the file happens to contain.
Step two: the file becomes a coordinate#
Global25 coordinates are issued by Davidski's independent Eurogenes Global25 service — the G25 Requests portal at g25requests.app — not by Ancestry, and not by us. Upload the raw file there, pay their €15 per-kit fee, and receive your row; their site states 2–7 days. The process and terms are the service's own and have changed more than once, so their posting is the only authority on the details. You will receive scaled and unscaled forms of your row: keep both, keep them labelled, and never mix the two in one comparison.
Rather not handle the request yourself? Upload this same file with an Ancestrify Global25 analysis and, with your consent, we obtain your official coordinates for you from that very service (+€15, typically a few days) — your full analysis runs the moment they arrive, and the row stays yours to keep.
Skip the temptation of "free G25" converters: a simulated row built from another calculator's output describes the conversion, not your genome. If you are ever handed a row of unknown origin, our authenticity check reads its numeric fingerprint.
Step three: use the row#
With a real coordinate row in hand, all of this is free, in your browser, with no account:
- Rank your closest ancient and modern populations, era by era, in the G25 distance calculator.
- Model your ancestry against curated source panels in the Global25 admixture calculator.
- Plot yourself on ancient-DNA PCA views in the G25 PCA viewer.
For the full worked report — distances, admixture and PCA across six eras with cinematic exports — see our Global25 analysis. And if you would rather submit the raw AncestryDNA file itself and get a formal, testable ancestry model with p-values and standard errors, that is our qpAdm analysis — a different method that takes the raw file directly.
Terms used here are defined in the glossary.
