Body Composition Calculator
Track your health journey with our Body Composition Calculator. Input your height, weight, age, and gender to get personalized insights to achieve your wellness goals.
Your Results
Your Results
How to Calculate BMI?
BMI (Body Mass Index) is a measure of body fat based on height and weight. It's a simple calculation that can help assess whether you're at a healthy weight.
​
Formula:
BMI = Weight (kg) / Height² (m²)
How to Calculate BMR?
BMR (Basal Metabolic Rate) is the number of calories your body burns at rest. It's influenced by factors like age, sex, height, and weight.
​​
For Males:
BMR = 88.362 + (13.397 × weight in kg) + (4.799 × height in cm) - (5.677 × age in years)
​
For Females:
BMR = 447.593 + (9.247 × weight in kg) + (3.098 × height in cm) - (4.330 × age in years)
< 18.5
UNDERWEIGHT
18.5 - 24.9
NORMAL
25.0 - 29.9
OVERWEIGHT
30 - 34.9
OBESE
35.0 >
EXTREME OBESITY
What's my daily calorie goal?
Caloric intake plays a significant role in weight management and overall health. By understanding your specific needs, you can tailor your diet to achieve your goals. Let's calculate your daily calorie goal.
Calorie Calculator
Target Daily Caloric Intake:
How Are Your Calories Calculated?
Our calculator uses the Mifflin St. Jeor formula, a trusted method for determining calorie needs, as recognized by nutritionists and dietitians. Here's how it works:
​
Determine Your Basal Metabolic Rate (BMR) – the calories your body burns at rest.​​
​
-
For women: 655 + (4.35 x weight in lbs) + (4.7 x height in inches) – (4.7 x age in years)
-
For men: 66 + (6.23 x weight in lbs) + (12.7 x height in inches) – (6.8 x age in years)
​
Adjust for Activity Level – multiply your BMR by a factor based on your activity:​
​
-
Lightly active: 1.375
-
Moderately active: 1.55
-
Very active: 1.725
-
Extra active: 1.9
-
Sedentary: 1.2
-
Customize for Your Goal:
​
-
For weight loss: Reduce the total calories by 10–20%.
-
For weight gain: Add 500 calories.
​
This approach provides a tailored estimate of your daily calorie requirements.