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Estimate your Basal Metabolic Rate (BMR) instantly with our free BMR Calculator. Enter your age, gender, height, weight, and activity level to find out how many calories your body needs each day to maintain basic bodily functions.
Age
Gender
Weight (kg)
Height (cm)
BMR :


Daily Calorie Needs :

How to Use This BMR Calculator

Calculating your Basal Metabolic Rate (BMR) only takes a few seconds. Follow the steps below to estimate how many calories your body burns each day while at complete rest.

  1. Enter your age.
  2. Select your gender.
  3. Enter your weight in kilograms (kg).
  4. Enter your height in centimeters (cm).
  5. Select your activity level.
  6. Click the Process button.
  7. Your BMR and estimated daily calorie needs will appear instantly.

Example

Age: 30 years

Gender: Male

Weight: 70 kg

Height: 175 cm

Result: BMR = 1,649 calories/day

Understanding Your BMR

Your Basal Metabolic Rate (BMR) is the minimum number of calories your body needs each day to perform essential functions while resting.

  • Breathing
  • Blood circulation
  • Body temperature regulation
  • Brain and organ function
  • Cell repair and maintenance

Estimated Daily Calorie Needs

Activity LevelMultiplier
Sedentary (little or no exercise)1.2
Lightly Active (1–3 days/week)1.375
Moderately Active (3–5 days/week)1.55
Very Active (6–7 days/week)1.725
Extra Active (physical job or intense training)1.9

Note: BMR is an estimate based on equations such as the Mifflin–St Jeor Formula. Actual calorie requirements vary depending on body composition, genetics, health conditions, and lifestyle. For personalized nutrition advice, consult a qualified healthcare professional.

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