Clinical TDEE & BMR Calculator
Calculate Basal Metabolic Rate and Total Daily Energy Expenditure using Mifflin-St Jeor and clinical stress factors.
BMR (kcal/day)
1618kcal
TDEE (kcal/day)
1942kcal
Reviewed by the CareCalculus Clinical Team·MD, ICU & Emergency Medicine specialists·Updated 2026
Clinical Implications
Accurate estimation of energy requirements prevents underfeeding and overfeeding in hospitalized patients. Mifflin-St Jeor is highly reliable for non-ventilated patients.
Guidelines & References
References: Academy of Nutrition and Dietetics (AND) guidelines; Mifflin MD, et al. (1990).
Formula
M: 10W + 6.25H - 5A + 5
F: 10W + 6.25H - 5A - 161
Frequently Asked Questions
What is BMR?
Basal Metabolic Rate is the amount of energy expended while at rest in a neutrally temperate environment.
Why use Mifflin-St Jeor?
The Mifflin-St Jeor equation is recommended by the Academy of Nutrition and Dietetics as the most accurate predictive equation for resting metabolic rate in healthy and obese adults.
How to apply stress factors?
Stress factors adjust the BMR to account for the increased metabolic demands of illness, surgery, or trauma. A factor of 1.2 is used for resting patients, while severe burns can increase metabolic demand to 2.0x BMR.
Suggested Diagnostic Protocols
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