Biological Age Calculator

Find out how fast your body is actually aging.

Enter nine standard blood markers from a recent draw and we’ll calculate your Phenotypic Age using the Levine formula (the same one Yale researchers published in Aging, 2018). Free. Takes about two minutes.

Don’t have a recent blood test? Order a Vitals Vault panel

Step 01

About you

First name

Last name

EmailWe email a copy of your result

Date of birth

Date of blood draw

Step 02

Your nine markers

0 / 9

From your most recent blood panel. Each row shows a typical reference range so you know what a normal entry looks like.

AlbuminLiver protein

g/dL

Typical 3.5–5.5 g/dL

CreatinineKidney function

mg/dL

Typical 0.6–1.3 mg/dL

GlucoseFasting blood sugar

mg/dL

Typical 70–110 mg/dL

C-Reactive ProteinInflammation (hs-CRP)

mg/L

Typical 0–3 mg/L

LymphocytesImmune cells

Typical 20–45 %

MCVMean cell volume

Typical 80–100 fL

RDWRed cell distribution

Typical 11.5–14.5 %

Alkaline PhosphataseLiver and bone

U/L

Typical 44–147 U/L

White Blood CellsTotal WBC count

10^3 cells/μL

Typical 4.5–11 10^3 cells/μL

I agree to receive my biological age result by email and consent to Vitals Vault processing my health data for this calculation. Privacy Policy

Free. Takes about two minutes. Your result is emailed instantly.

The science

Phenotypic age, explained simply.

The phenotypic age formula combines nine routine lab biomarkers (albumin, creatinine, glucose, high-sensitivity CRP, alkaline phosphatase, white blood cell count, lymphocyte percentage, mean cell volume, red cell distribution width) with your chronological age to estimate how your body is aging on the inside. Published in Agingby Levine et al. in 2018, it has outperformed chronological age as a predictor of all-cause mortality in large cohort studies. It’s population-level insight, not a diagnosis.

How this compares

Free to run, repeatable any time.

Epigenetic clocks like Horvath or DunedinPACE need a saliva-based DNA methylation test to run. Phenotypic age only needs the standard blood panel you probably already have. So you can repeat it after every draw and watch your number move quarter to quarter. It complements deeper longevity testing rather than replaces it.

The Vault Index · member preview

Whose body is actually aging slower?

A preview of our members ranked by biological-versus-chronological age, inspired by the Rejuvenation Olympics. Built on the same Phenotypic Age calculation you just ran. Calculate your number to take a spot.

Rank 2

Daniel K.

Chrono

→

Bio

34.2

12.8 yrs younger

Rank 1

Maya R.

Chrono

→

Bio

28.4

13.6 yrs younger

Rank 3

Elena V.

Chrono

→

Bio

26.6

11.4 yrs younger

#MemberChronologicalBiologicalDelta

4
Aaron T.
Boulder, CO
5141.2−9.8 yrs
5
Priya M.
Brooklyn, NY
4030.5−9.5 yrs
6
Marcus J.
Atlanta, GA
5546.1−8.9 yrs
7
Sarah L.
Seattle, WA
3526.9−8.1 yrs
8
Kenji O.
Los Angeles, CA
4840.4−7.6 yrs
9
Olivia W.
Portland, OR
3326.2−6.8 yrs
10
James H.
Chicago, IL
5347.0−6.0 yrs

Calculate now to claim your rank

Member preview. Names and locations anonymized. You choose whether to appear publicly when you calculate.

Educational tool. Not diagnostic. Always discuss results with a clinician before making medical decisions. Based on Levine et al. (2018).

Vitals Vault

Biological Age Calculator

Find out how fast your body is actually aging.

Don’t have a recent blood test? Order a Vitals Vault panel

Step 01

About you

First name

Last name

EmailWe email a copy of your result

Date of birth

Date of blood draw

Step 02

Your nine markers

0 / 9

From your most recent blood panel. Each row shows a typical reference range so you know what a normal entry looks like.

AlbuminLiver protein

g/dL

Typical 3.5–5.5 g/dL

CreatinineKidney function

mg/dL

Typical 0.6–1.3 mg/dL

GlucoseFasting blood sugar

mg/dL

Typical 70–110 mg/dL

C-Reactive ProteinInflammation (hs-CRP)

mg/L

Typical 0–3 mg/L

LymphocytesImmune cells

Typical 20–45 %

MCVMean cell volume

Typical 80–100 fL

RDWRed cell distribution

Typical 11.5–14.5 %

Alkaline PhosphataseLiver and bone

U/L

Typical 44–147 U/L

White Blood CellsTotal WBC count

10^3 cells/μL

Typical 4.5–11 10^3 cells/μL

I agree to receive my biological age result by email and consent to Vitals Vault processing my health data for this calculation. Privacy Policy

Free. Takes about two minutes. Your result is emailed instantly.

The science

Phenotypic age, explained simply.

How this compares

Free to run, repeatable any time.

The Vault Index · member preview

Whose body is actually aging slower?

Rank 2

Daniel K.

Chrono

→

Bio

34.2

12.8 yrs younger

Rank 1

Maya R.

Chrono

→

Bio

28.4

13.6 yrs younger

Rank 3

Elena V.

Chrono

→

Bio

26.6

11.4 yrs younger

#MemberChronologicalBiologicalDelta

4
Aaron T.
Boulder, CO
5141.2−9.8 yrs
5
Priya M.
Brooklyn, NY
4030.5−9.5 yrs
6
Marcus J.
Atlanta, GA
5546.1−8.9 yrs
7
Sarah L.
Seattle, WA
3526.9−8.1 yrs
8
Kenji O.
Los Angeles, CA
4840.4−7.6 yrs
9
Olivia W.
Portland, OR
3326.2−6.8 yrs
10
James H.
Chicago, IL
5347.0−6.0 yrs

Calculate now to claim your rank

Member preview. Names and locations anonymized. You choose whether to appear publicly when you calculate.

Educational tool. Not diagnostic. Always discuss results with a clinician before making medical decisions. Based on Levine et al. (2018).