---
title: "Biological Age Test & Calculator (Free) | Vitals Vault"
description: Take a free biological age test using nine routine blood markers and the Levine/Yale Phenotypic Age formula. Get your result in about two minutes.
canonical: "https://www.vitalsvault.com/biological-age-calculator"
last-updated: 2026-08-22
---

# Biological Age Test & Calculator (Free) | Vitals Vault

> Take a free biological age test using nine routine blood markers and the Levine/Yale Phenotypic Age formula. Get your result in about two minutes.

The science

## How this biological age test works.

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 *Aging*by 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.

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