Body Composition
Resting metabolic rate calculator
Calculate resting metabolic rate using Mifflin-St Jeor and Katch-McArdle — see which formula fits you and how much you burn at rest.
Your inputs
Age
Results
Live result
Mifflin-St Jeor RMR
1,681 cal/day
Katch-McArdle RMR
1,669 cal/day
Difference
11 cal
~TDEE (sedentary ×1.2)
2,017 cal/day
Medical disclaimer: This tool is for general educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health.
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