Biological Age Calculator
Your biological age reflects how old your body actually is based on your lifestyle and health habits, which may be younger or older than your chronological age. This calculator assesses key lifestyle factors like exercise, sleep, diet, stress, and habits to estimate your biological age.
Related tools
Enter your details
Your Biological Age
ExampleExample figures, not your own. Worked for a 35 year old who trains 3 to 4 times a week, sleeps 7 hours, has never smoked, drinks moderately, eats well and has moderate stress. Enter your own details and press Calculate.
Biological Age
29years
Chronological Age
35years
Difference
-6years
Younger than your ageAssessment
Your lifestyle habits are keeping you significantly younger than your age. Keep it up!
How It Works
This calculator starts with your chronological age and adjusts it based on lifestyle factors known to affect ageing. Regular exercise, adequate sleep, a healthy diet, and low stress levels reduce biological age. Smoking, excessive alcohol, poor sleep, and a sedentary lifestyle increase it. Each factor applies a modifier based on published health research.
How to use it
- 1Enter your chronological age
- 2Rate your exercise frequency (times per week)
- 3Enter your average nightly sleep hours
- 4Indicate your smoking and alcohol habits
- 5Rate your diet quality and stress level
- 6Click "Calculate" to see your estimated biological age
Quick Reference
| Factor | Positive Impact | Negative Impact |
|---|---|---|
| Exercise | 5+ sessions/week: -5 yrs | 0 sessions/week: +4 yrs |
| Sleep | 7-9 hours/night: -2 yrs | <5 hours/night: +4 yrs |
| Smoking | Never smoked: -1 yr | Heavy smoker: +8 yrs |
| Alcohol | None or light: -1 yr | Heavy drinking: +4 yrs |
| Diet | Excellent quality: -4 yrs | Poor quality: +4 yrs |
| Stress | Very low: -3 yrs | High stress: +4 yrs |
Values are approximate modifiers used in this calculator. Clinical biological age testing uses blood biomarkers for greater precision.
Biological Age Estimation
- Modifier
- = sum of adjustments from exercise, sleep, smoking, alcohol, diet, and stress factors
This calculator provides a lifestyle-based estimate. Clinical biological age is measured through DNA methylation, telomere length, and blood biomarkers. Use this as a motivational guide, not a medical assessment.