BMR — Basal Metabolic Rate (Mifflin–St Jeor)
Estimate your basal metabolic rate (kcal/day). Fields with 🔹 update live.
Required for the ± constant in the equation.
Enter full years. 🔹
Provide either centimeters or feet+inches. 🔹
Enter body weight in your preferred unit. 🔹
Mifflin–St Jeor estimate in kcal/day.
Fill all inputs to see your personalized summary.
Step-by-step derivation
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Mifflin–St Jeor reference
Formula (kcal/day):
BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age(y) + s
with s = +5 (male),
s = −161 (female).
Sources
• Mifflin MD, St Jeor ST, et al. “A new predictive equation for resting energy expenditure in healthy individuals.” AJCN, 1990.
• General dietetics references for BMR vs. TDEE concepts.
• General dietetics references for BMR vs. TDEE concepts.