BMR & Daily Calorie Calculator
Estimate your basal metabolic rate and daily calorie needs using the Mifflin-St Jeor formula.
| BMR (calories at rest) | |
|---|---|
| Daily calorie needs (TDEE) |
How to use this tool
Enter your sex, age, height, weight, and typical activity level, then select "Calculate" to see your estimated BMR and daily calorie needs (TDEE).
About this calculation
Uses the Mifflin-St Jeor equation: for men, BMR = 10×weight(kg) + 6.25×height(cm) − 5×age + 5; for women, BMR = 10×weight(kg) + 6.25×height(cm) − 5×age − 161. Daily calorie needs (TDEE) = BMR × activity multiplier. This is a population-average estimate, not an individual medical assessment — consult a doctor or registered dietitian for personalized guidance.
Source: Mifflin MD, St Jeor ST, et al. A new predictive equation for resting energy expenditure in healthy individuals. Am J Clin Nutr. 1990. This tool is for general informational purposes only and is not medical advice.
Frequently asked questions
What is BMR?
Basal Metabolic Rate is roughly the number of calories your body burns at complete rest just to maintain basic functions like breathing and circulation, before any activity is added.
How is BMR calculated here?
Using the Mifflin-St Jeor equation, widely regarded as one of the more accurate predictive formulas: for men, BMR = 10×weight(kg) + 6.25×height(cm) − 5×age + 5; for women, BMR = 10×weight(kg) + 6.25×height(cm) − 5×age − 161.
Is this medical advice?
No. This is a general estimate based on population averages, not an individual medical assessment. Consult a doctor or registered dietitian for personalized nutrition guidance.