// Biological Age Assessment Tool

Your Real Biological Age

Enter your latest biomarker results. The calculator analyses each against optimal ranges and computes your estimated biological age — how old your body actually is, not what your birth certificate says.

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How it works: Each biomarker is scored against peer-reviewed optimal ranges. Scores are weighted by their predictive significance for biological ageing. You don't need all values — the calculator adjusts for missing data. More complete data = more accurate result. This is not a medical diagnosis.

Estimated Biological Age

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Metabolic & Glucose

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Fasting Glucose

Optimal: 4.0–5.0 mmol/L

mmol/L

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HbA1c

Optimal: <5.4% (<36 mmol/mol)

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Fasting Insulin

Optimal: <8 mIU/L

mIU/L

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HOMA-IR

Optimal: <1.0 (insulin resistance proxy)

ratio

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Cardiovascular

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▲

Total Cholesterol

Optimal: <5.0 mmol/L

mmol/L

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LDL Cholesterol

Optimal: <2.5 mmol/L

mmol/L

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HDL Cholesterol

Optimal: >1.5 mmol/L

mmol/L

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Triglycerides

Optimal: <1.0 mmol/L

mmol/L

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hsCRP (High-Sensitivity)

Optimal: <0.5 mg/L

mg/L

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Systolic Blood Pressure

Optimal: 100–120 mmHg

mmHg

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Resting Heart Rate

Optimal: <55 bpm

bpm

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Hormonal

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▲

Total Testosterone

Optimal male: 20–35 nmol/L

nmol/L

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Free Testosterone

Optimal male: >0.3 nmol/L

nmol/L

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IGF-1 (Growth Hormone proxy)

Optimal: 150–280 ng/mL

ng/mL

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DHEA-S

Optimal 60+: >150 µg/dL

µg/dL

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Cortisol (morning)

Optimal: 300–500 nmol/L

nmol/L

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TSH (Thyroid)

Optimal: 1.0–2.0 mIU/L

mIU/L

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Body Composition

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▲

Body Fat Percentage (DEXA)

Optimal 60+: <20% male / <28% female

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Lean Muscle Mass (DEXA)

Optimal: preserve / increase vs. age norm

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Visceral Fat Area

Optimal: <100 cm² (DEXA)

cm²

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BMI

Optimal longevity: 22–25

kg/m²

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🏃

Functional Fitness

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▲

VO₂ Max

Excellent 60+: >40 mL/kg/min

mL/kg/min

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Grip Strength (dominant hand)

Optimal male 60+: >40 kg

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HRV (Heart Rate Variability)

Optimal 60+: >40 ms (RMSSD)

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Inflammation & Cellular

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Ferritin

Optimal: 50–200 ng/mL

ng/mL

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Vitamin D (25-OH)

Optimal: 100–150 nmol/L

nmol/L

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Homocysteine

Optimal: <7 µmol/L

µmol/L

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Omega-3 Index

Optimal: >8%

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Your Chronological Age

years

Category Breakdown

Priority Actions