BMR Calculator
HealthBasal Metabolic Rate (Mifflin-St Jeor).
BMR is the foundation — multiply by your activity factor to get daily needs (TDEE).
Basal Metabolic Rate (BMR) is the energy your body burns at complete rest just to keep vital functions running — breathing, circulation, and cell repair. The Mifflin-St Jeor equation is the modern standard for estimating it from weight, height, age, and gender. BMR accounts for roughly 60–75% of daily calorie burn. Knowing it is the foundation for calculating total daily energy expenditure (TDEE) and planning nutrition for weight loss, maintenance, or gain.
How to use BMR Calculator
- 1Open the BMR Calculator calculator above.
- 2Enter your values into the input fields.
- 3Read the result shown instantly.
Formula
BMR = 10·weight + 6.25·height − 5·age + s [s=5 male, −161 female]
Example
Male, 30, 175 cm, 70 kg → BMR ≈ 1650 kcal.
FAQs
What is BMR Calculator؟
Basal Metabolic Rate (Mifflin-St Jeor).
Is BMR Calculator free to use?
Yes — it is 100% free, runs entirely in your browser, and needs no sign-up.
Does BMR Calculator work on mobile?
Yes, it is fully responsive and works on phones, tablets, and desktops.
