What is BMI and how is it calculated?

BMI (Body Mass Index) is calculated by dividing your weight in kilograms by your height in meters squared (BMI = kg/m²). It provides a general indication of whether you are underweight, normal weight, overweight, or obese.

TDEE (Total Daily Energy Expenditure) is the total number of calories you burn each day, including your basal metabolic rate plus calories burned through physical activity. It helps determine how many calories you need to maintain, lose, or gain weight.

How many calories should I eat to lose weight?

To lose weight safely, you should aim for a caloric deficit of 500-750 calories below your TDEE. This typically results in 0.5-0.75 kg (1-1.5 lbs) of weight loss per week, which is considered healthy and sustainable.

What is a healthy BMI range?

According to the World Health Organization (WHO), a healthy BMI range is between 18.5 and 24.9. Below 18.5 is considered underweight, 25-29.9 is overweight, and 30 or above is classified as obese.

BMI is a useful screening tool but has limitations. It does not distinguish between muscle mass and fat, so athletes may have high BMI despite low body fat. For a complete health assessment, consider consulting healthcare professionals and using additional measurements.

BMI & Calorie Calculator

Calculate your BMI, daily calorie needs, macronutrients, and ideal weight. Get personalized recommendations based on your activity level and goals.

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Gender

Age

Weight (kg)

Height (cm)

Activity Level

Goal

Your BMI Result

22.9

BMI

Normal Weight

1518.5253040+

Healthy Weight Range

56.7 kg - 76.3 kg

BMI Categories Reference

Severely Underweight

< 16

Moderately Underweight

16 - 16.9

Mildly Underweight

17 - 18.4

Normal Weight

18.5 - 24.9

Overweight

25 - 29.9

Obese Class I

30 - 34.9

Obese Class II

35 - 39.9

Obese Class III

≥ 40

About BMI

BMI (Body Mass Index) is a measure of body fat based on height and weight. While useful, it doesn't account for muscle mass, bone density, or fat distribution.

Healthy Tip

Aim for gradual weight changes of 0.5-1 kg per week. Rapid weight loss can lead to muscle loss and nutritional deficiencies.

Disclaimer

This calculator provides estimates for educational purposes. Consult a healthcare professional for personalized advice, especially if you have health conditions.

Frequently Asked Questions

BMI & Calorie Calculator

What is BMI and how is it calculated?

What is BMR and TDEE?

How accurate is the body fat estimation?

How many calories should I eat to lose weight?

Is BMI accurate for athletes?

How much water should I drink daily?