Free · Instant · No account

Longevity Score Calculator

Enter your most recent standard lab values. Your biological age is calculated using the validated PhenoAge algorithm (Levine et al. 2018, Aging) — the most peer-reviewed non-epigenetic biological age calculator available.

Nothing is stored. Calculations happen in your browser. No data leaves this page.

Your lab values

Chronological age years

Albumin g/dL

Creatinine mg/dL

Glucose mg/dL

hsCRP mg/L

Lymphocyte % %

MCV fL

RDW %

Alk Phosphatase U/L

WBC 10³/µL

Educational only · Not medical advice · Discuss results with your physician
Based on: Levine et al. 2018, Aging

Enter your lab values on the left
and click Calculate to see your results.

PhenoAge uses 9 standard biomarkers
available on any comprehensive metabolic panel.

What PhenoAge measures

The rate at which your body is biologically aging — based on 9 blood biomarkers that together predict mortality better than chronological age alone. A 54-year-old with a PhenoAge of 47 has the biological aging profile of a typical 47-year-old.

Why these 9 markers

Levine et al. tested 42 clinical biomarkers from NHANES data (n=11,432) and identified the 9 that best predicted all-cause mortality, disease burden, and physical function — available from any standard CBC + CMP blood panel.

What to do with the result

Retest after 12 weeks of any new protocol to see if the biomarkers move. The goal is not a single number — it's the direction of change over time. Each marker that's out of range has interventions with Grade A or B evidence on the Protocols page.