BMI Formula:
From: | To: |
Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared. BMI provides a reliable indicator of body fatness for most people.
The calculator uses the standard BMI formula:
Where:
Explanation: The formula divides a person's weight by the square of their height to categorize their weight status.
Details: BMI is a simple, inexpensive screening method for weight categories that may lead to health problems. It's used to identify possible weight problems for adults.
Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0). For women, normal BMI typically ranges from 18.5 to 24.9.
Q1: What is a healthy BMI for women?
A: For women, a BMI between 18.5 and 24.9 is generally considered healthy. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.
Q2: Is BMI different for men and women?
A: The BMI calculation is the same, but healthy ranges may vary slightly due to differences in body composition.
Q3: What are BMI limitations?
A: BMI doesn't distinguish between muscle and fat, so athletes may have high BMI without excess fat. It also doesn't account for fat distribution.
Q4: How often should I check my BMI?
A: Periodic checks (every 6-12 months) can help track weight status, but it's not necessary to check frequently unless monitoring a specific condition.
Q5: Should pregnant women use BMI?
A: BMI calculations during pregnancy aren't accurate due to weight changes. Consult your healthcare provider for appropriate weight guidance during pregnancy.