Basal Metabolic Rate (BMR) is calculated using the Mifflin-St Jeor Equation, the most accurate formula for BMR estimation:
For Men:
BMR = (10 × weight) + (6.25 × height) − (5 × age) + 5
For Women:
BMR = (10 × weight) + (6.25 × height) − (5 × age) − 161
Metabolic Age is estimated by comparing your calculated BMR to average BMR values for different age groups. A higher BMR relative to your chronological age suggests a "younger" metabolic age.
What affects metabolic age?
- Muscle mass (more muscle = higher BMR)
- Body composition (lean tissue burns more calories)
- Hormonal factors (thyroid function, etc.)
- Physical activity level
- Genetics and lifestyle factors
Note: This is an estimation tool. For precise metabolic testing, consult with a healthcare professional.