Biological Age Calculator – See How Old Your Body Really Is

Discover your true biological age using advanced phenotype and epigenetic methods. Get personalized insights into your health aging and track improvements over time.

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Get Your Biological Age + Risk Drivers

Join users who've discovered their true biological age and are tracking improvements with our scientifically-validated calculator.

Your biological age reveals how old your body actually is, regardless of your chronological age. While you might be 35 years old, your body could be functioning like it's 28 or 42. Unlike most research that focuses on just one aging type, we provide a comprehensive assessment covering blood age, heart age, face age (AI), fitness age, and epigenetic age—giving you the complete picture of your biological aging.

Why Comprehensive Biological Age Assessment Matters

Complete Picture

Most research focuses on one aging type. We assess all five: blood, heart, face, fitness, and epigenetic age

Precision Insights

Identify which systems are aging faster or slower than others

Targeted Interventions

Focus your efforts on the aging systems that need the most attention

The Science Behind Our Multi-System Biological Age Assessment

1

Blood Age Analysis

Analyzes inflammatory markers, metabolic factors, and cellular health indicators to determine how old your blood system is.

2

Heart Age Assessment

Evaluates cardiovascular health, blood pressure, and heart function to determine your heart's biological age.

3

Face Age (AI-Powered)

Uses advanced AI to analyze facial features and skin characteristics to estimate your facial aging.

4

Fitness Age Calculation

Based on the HUNT model, calculates your fitness age using VO2max prediction from lifestyle factors.

5

Epigenetic Age Analysis

Examines DNA methylation patterns and epigenetic changes that correlate with biological aging processes.

Example: A 40-year-old might have: Blood age 35, Heart age 38, Face age 42, Fitness age 32, Epigenetic age 37. This reveals that their face is aging faster while their fitness is excellent.

Scientific Basis: Based on HUNT fitness age model, epigenetic aging research, and validated AI facial analysis

Our Evidence-Based Biological Age Calculation Method

How Our Comprehensive Biological Age Calculator Works

While most research focuses on just one aging type, our calculator provides a complete picture by assessing all five major aging systems: blood age, heart age, face age (AI-powered), fitness age, and epigenetic age. This multi-system approach gives you unprecedented insight into your biological aging.

Scientific Basis: Based on HUNT fitness age model, epigenetic aging research, and validated AI facial analysis. Unlike single-type studies, we integrate multiple validated methods.

Blood Age Analysis

Analyzes inflammatory markers, metabolic factors, and cellular health indicators to determine your blood system's age.

Markers: CRP, glucose, lipids, and cellular health indicators

Heart Age Assessment

Evaluates cardiovascular health, blood pressure, and heart function to determine your heart's biological age.

Factors: Blood pressure, cholesterol, heart rate variability

Face Age (AI-Powered)

Uses advanced AI to analyze facial features, skin texture, and aging patterns to estimate your facial aging.

Technology: Validated AI facial analysis algorithms

Fitness Age Calculation

Based on the validated HUNT model, calculates your fitness age using VO2max prediction from lifestyle factors.

Accuracy: Within 3-5 years of actual fitness age

Epigenetic Age Analysis

Examines DNA methylation patterns and epigenetic changes that correlate with biological aging processes.

Science: DNA methylation clock analysis

System Comparison

Compare how different systems are aging relative to each other and identify which need attention.

Insight: Targeted intervention opportunities

Example: Multi-System Biological Age Assessment

40-year-old results:
• Blood age: 35 (excellent metabolic health)
• Heart age: 38 (good cardiovascular health)
• Face age: 42 (facial aging accelerated)
• Fitness age: 32 (excellent physical condition)
• Epigenetic age: 37 (good cellular aging)
Insight: While overall health is good, facial aging suggests need for skin care and sun protection

How to Get Your biological age Calculation

1

Sign in with your email (free)

Create your free account to access the newest health tools and calculators.

2

Fill in your health profile

Add your age, fitness metrics, lifestyle factors, and health data to get your biological age assessment.

3

Go to Health Scores → Nutrition

Find your biological age calculation along with detailed breakdowns of your aging factors and improvement recommendations.

🎉 Bonus: Access 50+ other free health insights

You can also find 50+ other free health features on Carthalis, including:

AI-powered tools
Fitness tracking
Body composition
Longevity assessment
Drug interactions
Lab results analysis

Ready to Discover Your True Biological Age?

Join users who've discovered their biological age and are actively improving their health aging.

Free forever • No credit card required • Results in 2 minutes

Frequently Asked Questions

How accurate is the biological age calculator?

Our biological age calculator uses validated phenotype and epigenetic methods to provide accurate estimates within 3-5 years of your actual biological age. It combines multiple biomarkers including fitness age, blood age, and lifestyle factors for comprehensive assessment.

What methods does your calculator use?

We use phenotype-based methods (fitness age, blood age) and epigenetic markers to calculate biological age. Our approach combines validated research models including the HUNT fitness age model and blood biomarker analysis for comprehensive aging assessment.

How often should I recalculate my biological age?

We recommend recalculating every 3-6 months to track improvements from lifestyle changes, exercise, and health interventions. Regular monitoring helps you see the impact of positive health behaviors on your biological aging.

Is the calculator free to use?

Yes! Our biological age calculator is completely free. Simply create an account to access all our health and aging assessment tools.

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