ProAge AtlasResearch prototype · Back to home

Research instrument · Clinical biomarkers

PhenoAge Explorer.

A published model. Your inputs. A transparent view of what a clinical age estimate can—and cannot—tell us.

Clinical blood model

Your input panel

0 / 10 inputs

All fields use SI units, shown beside each label. Switching units converts entered values; calculate again to refresh the result.

Age on the date of the blood test
Serum albumin
Serum creatinine
Serum glucose
Enter a measured value greater than zero
Percentage, not absolute cell count
MCV
RDW-CV percentage, not RDW-SD
ALP enzyme activity
Equivalent numeric units in both systems

Calculated in your browser. Blood values are not sent to our servers.

PhenoAge Explorer

From a blood panel
to a research perspective.

Enter all ten inputs or explore the synthetic example. The published model will appear here with its chronological-age comparison.

Levine et al. · 2018Deterministic model

Method & interpretation

A measurement deserves context.

One model, ten inputs

Chronological age and nine blood biomarkers enter a fixed Gompertz-based model. We use the original precision coefficients reproduced in the authors’ BioAge implementation. No AI fills gaps or changes the formula.

Levine et al., Aging · 2018 ↗

Units are part of the method

Albumin, creatinine, glucose and CRP are converted explicitly. The natural logarithm uses CRP in mg/dL. A zero or below-detection CRP cannot be entered as a measured value; missing inputs stop the calculation.

Original coefficient reference ↗

Age is not aging speed

This is clinical PhenoAge, not the 513-CpG DNAm PhenoAge clock. The displayed difference is PhenoAge minus chronological age, not a population-adjusted acceleration residual. Adult research use; the 20–100 input range is a data-entry guardrail, not a validated age range.

Educational research output. It does not diagnose disease or guide treatment.

Open Institute of Age and Aging

Published methods. Traceable sources. Questions worth pursuing.

Collaborate with the laboratory