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Phenotypic Age Calculator

Calculates biological age based on chronological age and 9 blood biomarkers. This algorithm was developed by Dr. Morgan Levine using NHANES IV data and correlates strongly with all-cause mortality risk.

Chronological Age (years)

Albumin (g/L)

Note: Multiply g/dL by 10

Creatinine (umol/L)

Note: Multiply mg/dL by 88.4

Glucose (mmol/L)

Note: Divide mg/dL by 18

C-Reactive Protein (mg/L)

High sensitivity (hs-CRP) preferred

Lymphocyte %

Percentage of total WBC

Mean Corpuscular Vol (fL)

MCV from CBC panel

Rdw (%)

Red Cell Distribution Width

Alkaline Phosphatase (U/L)

ALP

WBC (1000 cells/uL)

White Blood Cell Count

Calculation Result

Chronological Age:

Phenotypic (Biological) Age:

Your biological age is younger than your chronological age.

Your biological age is older than your chronological age.

JavaScript is required for the interactive calculator. Please use the manual formula below.

Manual Calculation Formula

The Phenotypic Age score is calculated using the following Gompertz mortality model equation:

xb = -19.907 - 0.0336*Albumin + 0.0095*Creatinine + 0.1953*Glucose + 0.0954*ln(CRP) + 0.0120*Lymphocyte% + 0.0268*MCV + 0.3306*RDW + 0.00188*ALP + 0.0554*WBC + 0.0804*Age

Mortality Risk (m) = 1 - exp(-1.51714 * exp(xb) * (exp(0.0076927) - 1) / 0.0076927)

Phenotypic Age = 141.50225 + ln(-ln(1 - m)) / 0.090165