BMR Calculator — Calculate Your Basal Metabolic Rate
Determine your Basal Metabolic Rate (BMR) and discover how many calories your body burns at rest. Adjust for your daily activity level to find your Total Daily Energy Expenditure (TDEE).
Your Basal Metabolic Rate (BMR) represents the absolute minimum amount of energy (in calories) your body requires to survive and function while at complete rest. Even when you are sleeping or inactive, your body is constantly using energy to perform vital internal functions like breathing, circulating blood, regulating body temperature, and generating new cells. BMR accounts for approximately 60% to 75% of all the calories you burn in a single day. Knowing your BMR is the most critical first step before designing any nutrition plan—whether your goal is sustainable weight loss, healthy weight gain, or maintaining your current physique. Our clinical calculator uses the proven Mifflin-St Jeor equation to give you an accurate metabolic baseline.
Calculate Your BMR & TDEE
Enter details to see results
Select your gender, age, weight, height, and daily activity level on the left to compute your Basal Metabolic Rate (BMR) and daily expenditure.
How to Use This Calculator
Using the BMR calculator to find your resting metabolic baseline is simple:
- Select your Biological Sex: BMR equations differ slightly for men and women due to natural variances in muscle mass.
- Enter your Age: Metabolic rate naturally slows down as we get older, so age is a key factor.
- Input Height and Weight: Provide your current measurements (in Metric or Imperial units) as accurately as possible.
- Select Activity Level (Optional): To calculate your Total Daily Energy Expenditure (TDEE), select how physically active you are during a typical week.
What Your Result Means
The number generated by the calculator is your BMR. This is the calorie threshold you should generally never eat below, as doing so can trigger a starvation response in your body.
If you selected an activity level, you will also see your TDEE (Total Daily Energy Expenditure). Your TDEE is the total number of calories you burn throughout the day, including all physical activities, work, and exercise.
- Sedentary: Little to no physical activity (BMR x 1.2).
- Lightly Active: Light exercise 1 to 3 times a week (BMR x 1.375).
- Moderately Active: Moderate workout 3 to 5 times a week (BMR x 1.55).
- Very Active: Intense training 6 to 7 times a week (BMR x 1.725).
The Mifflin-St Jeor Equation
Our calculator uses the Mifflin-St Jeor Equation, proven by clinical studies to be the most accurate formula for calculating metabolic baselines:
Men BMR: 10 × Weight(kg) + 6.25 × Height(cm) - 5 × Age(years) + 5
Women BMR: 10 × Weight(kg) + 6.25 × Height(cm) - 5 × Age(years) - 161
Note: Individuals with more lean muscle burn more calories at rest, which naturally elevates their BMR.
When to See a Doctor
If you are eating strictly according to your calculated TDEE but are experiencing unexplained, rapid weight gain, severe fatigue, or an inability to lose weight despite a caloric deficit, it may indicate an underlying metabolic or hormonal issue. Conditions like Hypothyroidism, Polycystic Ovary Syndrome (PCOS), or insulin resistance can severely suppress your actual metabolic rate, rendering standard BMR calculators inaccurate for your specific body.
At Prakash Hospital, our Endocrinology and General Medicine departments offer comprehensive thyroid profiling, blood sugar tracking, and clinically supervised nutritional planning. Don't fight a hidden metabolic issue alone—let our experts help.
Related Departments
Consult Our Experts
Frequently Asked Questions
Find answers to common questions about your BMR calculation at Prakash Hospital Noida.
Can I eat fewer calories than my BMR to lose weight?
How can I increase my BMR?
Are BMR calculations accurate if I have thyroid issues?
Prakash Hospital Pvt. Ltd. is a 100 bedded NABH NABL accredited multispecialty hospital along with a center of trauma and orthopedics. We are in the service of society since 2001.
OUR SPECIALITIES
Patient Services
PROCEDURES
Contact Us
D – 12A, 12B, Sector-33, G. B. Nagar, Noida, Uttar Pradesh 201301
+91-8826000033
© 2026 All rights reserved.
Designed and Developed by Zarle Infotech
