Metabolic Age Calculator

The Metabolic Age Calculator compares your body’s basal metabolic rate (BMR) with the average BMR of people in your age group to estimate your metabolic age.

Metabolic age is an estimate based on BMR and population averages.

Your Results

Basal Metabolic Rate
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Metabolic Age
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Assessment
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What Is Metabolic Age?

Metabolic age represents how your basal metabolic rate compares to the average BMR of people at different ages. If your metabolic age is lower than your actual age, it generally indicates better metabolic health.

What Is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body burns at rest to maintain essential functions such as breathing, circulation, and cell production.

How Metabolic Age Is Calculated

This calculator estimates BMR using the Mifflin-St Jeor equation and compares it against population-based average BMR values to determine metabolic age.

Why Metabolic Age Matters

  • Indicates overall metabolic efficiency
  • Reflects fitness and muscle mass
  • Helps track lifestyle improvements
  • Used in wellness and fitness assessments

Frequently Asked Questions

A higher metabolic age may indicate lower muscle mass, inactivity, or metabolic inefficiency compared to your age group.
Yes. Regular exercise, strength training, proper nutrition, and adequate sleep can help improve metabolic health.
Metabolic age is an estimate, not a medical diagnosis. It should be used as a general wellness indicator.
This calculator is designed for healthy adults. Medical conditions may affect metabolic rate.