🔢 Mifflin-St. Jeor Formula – scientifically validated

BMR Calculator – Basal Metabolic Rate

Your Basal Metabolic Rate (BMR) is the energy your body needs at complete rest – the foundation of every nutrition plan.

🔢 Calorie Calculator

Calculate your daily total energy expenditure (TDEE)

🔢 Calorie Calculator

Calculate your daily total energy expenditure (TDEE)

What Is Basal Metabolic Rate (BMR)?

BMR is the number of calories your body needs at complete rest to maintain basic functions: breathing, heartbeat, body temperature and cell repair. It typically accounts for 60–70% of your total daily energy expenditure.

BMR vs. TDEE – What's the Difference?

BMR is your resting energy need. TDEE (Total Daily Energy Expenditure) multiplies your BMR by an activity factor (1.2–1.9) to calculate actual daily calorie burn. NutriLumo automatically calculates both values and derives your calorie goal from them.

What Influences Basal Metabolic Rate?

Age (drops approx. 1–2% per decade after 30), sex (men have approx. 5–10% higher BMR), height and weight, muscle mass (more muscle = higher BMR), thyroid function and body temperature.

Create a Meal Plan Based on Your Calories

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Frequently Asked Questions

How is BMR calculated?+
Mifflin-St. Jeor for men: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5. For women: − 161 instead of + 5. NutriLumo calculates this automatically.
What is a normal BMR?+
For women approximately 1,200–1,500 kcal, for men approximately 1,500–2,000 kcal daily – depending on age, height and weight.
Can I increase my BMR?+
Yes – through building muscle (strength training), sufficient sleep, regular meals and adequate protein. Crash diets lower your BMR.
Why do I need my BMR?+
BMR is the basis for calculating your calorie goal. Without it, you won't know how much to eat – whether losing, maintaining or gaining weight.