Biological Age Calculator
Your calendar age tells you how long you've been alive. Your biological age tells you how well your body is actually doing. Enter a few details for a quick estimate — no lab report needed.
Just curious how old you look? Try the face age calculator.
Also try
Heart Age Calculator
See how old your cardiovascular system behaves versus your calendar age — blood pressure, cholesterol and smoking.
Your actual age
Measured at rest
Per night
Moderate or higher
At the navel
Without shoes
Fill in all fields to see your estimate.
This is an educational estimate, not a medical diagnosis. For a marker-by-marker biological age from real blood work, upload your lab report for full Preventia scoring.
Your file stays private
Everything runs on secure servers and your file is processed in the moment — never kept.
- Your file is never storedYour lab PDF is read once to build your result, then immediately discarded.
- Encrypted in transitData is sent over a secure connection and used only to generate your analysis.
- No account needed to tryGet a full estimate without signing up — no email, no commitment.
- You stay in controlOnly your results are saved — and only if you choose to create an account.
PhenoAge calculator (blood markers)
Already have recent blood work? PhenoAge is a published research formula (Levine et al., 2018) that estimates biological age from nine standard lab markers plus your calendar age. It is far more precise than a lifestyle estimate. All fields are optional — the result appears once every marker is filled in.
Enter all nine markers plus your age to see your PhenoAge.
Educational estimate based on published research, not a medical diagnosis. Values are calculated in your browser and never sent anywhere.
What is biological age?
Biological age reflects how old your body functions compared to your calendar age. Two people born the same year can have biological ages a decade apart, depending on genetics, lifestyle and environment. Unlike calendar age, biological age can move in both directions — which means it responds to the choices you make.
What this estimate looks at
Resting heart rate
A lower resting rate generally signals a fitter cardiovascular system.
Sleep
Around 7–8 hours supports recovery, metabolism and brain health.
Activity
Regular movement is one of the strongest levers on healthy aging.
Body composition
Waist-to-height ratio is a simple proxy for metabolic risk.
Can you lower it?
Yes. Consistent exercise, quality sleep, a whole-food diet, stress management and avoiding tobacco can measurably reduce biological age over time. The key is tracking: re-testing your blood markers shows whether your habits are actually working — long before disease needs drugs.
Frequently asked questions
Also try
Heart Age Calculator
Already have your biological age? See how old your heart behaves — blood pressure, cholesterol and smoking drive it independently.
Want your real biological age?
Upload a recent blood panel and Preventia estimates your biological age from every marker — then turns it into a trackable prevention plan.
Analyze your report