BMR (Calorie) Calculator – Basal Metabolic Rate
Use this BMR (Calorie) Calculator to enter your age, gender, height, and weight and see your Basal Metabolic Rate (BMR) plus estimated daily calorie needs.
Enter Your Details
Formula Used
- Mifflin-St Jeor Equation:
- Men: BMR = 10 × weight + 6.25 × height − 5 × age + 5
- Women: BMR = 10 × weight + 6.25 × height − 5 × age − 161
- Daily Calories = BMR × Activity Factor
Quick Questions
Is BMR the same as RMR?
BMR is measured under stricter conditions than RMR (Resting Metabolic Rate), but both are close estimates of calorie burn at rest.
Can I use pounds and inches?
For the best result, convert to kilograms and centimeters before using this calculator.
Does exercise increase my BMR?
Exercise mainly increases your daily calorie needs. Long-term training can slightly improve metabolism, but BMR itself is mostly based on age, gender, height, and weight.
Where Can You Use This BMR (Calorie) Calculator?
You can use this BMR (Calorie) Calculator whenever you want to understand how many calories your body needs at rest and how much you should eat based on your daily activity level.
Planning Safe Weight Loss
Use your BMR and daily calorie estimate to create a safe calorie deficit, so you can lose weight slowly without harming your health or energy levels.
Healthy Weight Gain & Muscle Goals
Add calories above your daily needs to gain weight or build muscle in a planned, controlled way instead of eating random extra food.
Designing Daily Diet & Meals
Share your BMR and daily calories with a dietitian or use them to plan your own breakfast, lunch, snacks, and dinner targets.
Tracking Gym & Fitness Progress
Match your workout intensity with the right calorie intake so you don’t feel tired all the time or overeat after exercise.
Discussing Health with Your Doctor
Take your BMR result to your doctor as a simple number when talking about obesity, underweight issues, diabetes, or thyroid-related problems.
Managing Everyday Energy Levels
If you often feel low on energy or sleepy, compare your eating pattern with your daily calorie needs and adjust your lifestyle step by step.
BMR (Calorie) Calculator – FAQ
BMR (Basal Metabolic Rate) is the number of calories your body needs at complete rest to maintain basic functions like breathing, heartbeat, and body temperature. It is the starting point for planning weight loss, weight gain, or weight maintenance.
The calculator uses the Mifflin–St Jeor equation. You enter your age, gender, height, weight, and activity level. First it finds your BMR in kcal per day, then multiplies it by an activity factor to estimate your daily calorie needs.
BMR is the minimum energy your body needs at rest. Daily calorie needs include all your movement and activities in a normal day. To get daily calories, BMR is multiplied by an activity factor such as sedentary, lightly active, or very active.
BMR and RMR are very similar, but BMR is measured under stricter lab conditions. In everyday life, BMR and RMR are often used in a similar way to estimate how many calories you burn at rest.
Yes. Once you know your daily calorie needs, you can create a small calorie deficit to lose weight or a surplus to gain weight. Slow and steady changes are safer than extreme dieting or overeating.
No. This tool gives approximate calorie estimates for information and education only. It does not replace medical advice. Always consult your doctor or dietitian before making big changes to your food, exercise, or weight goals.
