What is physiological age?
Physiological age (or fitness age) represents your body's functional age, as opposed to your chronological age. It is based on several health and fitness markers that reflect your true biological state.
Why is our calculator more accurate?
Unlike simplified calculators that rely on only one or two parameters, our tool combines 5 key factors for a comprehensive assessment:
- VO₂max or running performance: The best indicator of cardiovascular health (weight 30%)
- Resting heart rate: Reflection of cardiac efficiency (weight 25%)
- BMI or body fat: Body composition and metabolic risks (weight 20%)
- Daily physical activity: Number of steps and active lifestyle (weight 15%)
- Lifestyle factors: Tobacco and alcohol (weight 10%)
How to interpret your result?
- Physio age < Real age: Congratulations! Your physical fitness is above average for your age
- Physio age = Real age: Your physical fitness corresponds to the average
- Physio age > Real age: Your physical fitness could be improved
Scientific basis
Our algorithm is inspired by Norwegian research on fitness age (Norwegian University of Science and Technology) and incorporates VO₂max standards by age and sex established by the American Heart Association.
How to improve your physiological age?
- Gradually increase your VO₂max with interval training
- Maintain a healthy weight and optimal body composition
- Aim for at least 7,500 steps per day
- Reduce or quit smoking and limit alcohol
- Practice cardiovascular activity regularly