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BMI Calculator

Calculate your Body Mass Index.

The calculated BMI is 24.5, which falls in the "Normal weight" category. A healthy weight range for this height is 56.7–76.3 kg.

Enter Values

75 kg
20300
1.75 m
0.52.5
Your BMI24.5
CategoryNormal weight
Healthy Weight Min56.7 kg
Healthy Weight Max76.3 kg

What is BMI Calculator?

Body Mass Index (BMI) is a simple screening tool that uses your weight and height to estimate body fatness. While it doesn't measure body fat directly, BMI correlates with more direct measures of body fat. The WHO classifies BMI ranges as: Underweight (< 18.5), Normal weight (18.5–24.9), Overweight (25–29.9), and Obese (β‰₯ 30). BMI doesn't account for muscle mass, bone density, or age, so it should be used alongside other health assessments.

How to Interpret Your Results

BMI Categories: Underweight = below 18.5; Normal weight = 18.5–24.9; Overweight = 25–29.9; Obese = 30 or above. Keep in mind that BMI is a screening tool and may not be accurate for athletes, pregnant women, or the elderly. Consult a healthcare provider for a comprehensive assessment.

How to Use This BMI Calculator

Simply adjust the input fields on the left using sliders or by typing values directly. Results update instantly in real-time β€” no button required. You can share your exact calculation by clicking Share Link.

Formula

BMI = weight (kg) / height (m)Β²

Normal range: 18.5–24.9. Below 18.5 = underweight, 25–29.9 = overweight, 30+ = obese.

Frequently Asked Questions

What is BMI?

BMI (Body Mass Index) is calculated as weight (kg) divided by height (m) squared. It's a screening tool, not a diagnostic measure.

What is a healthy BMI range?

18.5–24.9 is considered normal weight. Below 18.5 is underweight, 25–29.9 is overweight, and 30+ is obese.

Is BMI accurate for everyone?

BMI doesn't account for muscle mass, bone density, or age. Athletes may have a high BMI without excess fat.