BMR (Basal Metabolic Rate)
Estimated calories burned at complete rest, using the Mifflin-St Jeor equation.
What is BMR (Basal Metabolic Rate)?
Estimated calories burned at complete rest, using the Mifflin-St Jeor equation. BMR is intended for use in: Adults.
How to Use the BMR Calculator
- Enter Weight in kg.
- Enter Height in cm.
- Enter Age in years.
- Enter Sex.
- Click Calculate to see your result and interpretation.
Formula & Version
This calculator uses formula version 1.0, last reviewed September 2026.
Clinical Considerations & Limitations
- A population-average predictive equation — indirect calorimetry is more accurate for an individual patient.
- Less validated in older adults, pregnancy, and significant obesity.
References
- Mifflin MD et al., Am J Clin Nutr 1990;51:241-247
Frequently Asked Questions
What is BMR (Basal Metabolic Rate)?
Estimated calories burned at complete rest, using the Mifflin-St Jeor equation.
Who is BMR intended for?
Adults. Always confirm applicability to your specific patient before use.
What are the limitations of BMR?
A population-average predictive equation — indirect calorimetry is more accurate for an individual patient. Less validated in older adults, pregnancy, and significant obesity.
What formula or reference does BMR use?
Mifflin MD et al., Am J Clin Nutr 1990;51:241-247
Is BMR a diagnosis?
No. BMR produces a score or estimate to support clinical decision-making — it is not a diagnosis and should be interpreted alongside full clinical judgement.
