Calculate Your BMI by Hand
What is Calculating Your BMI by Hand and Why it Matters
Body Mass Index (BMI) is a measure of your body weight in relation to your height. It’s a simple way to check if you’re at a healthy weight for your height. Calculating your BMI by hand can help you understand your body’s composition and track changes over time.
How to Use This Calculator
- Enter your weight in kilograms (kg).
- Enter your height in meters (m).
- Click ‘Calculate’.
Formula & Methodology
BMI is calculated as weight in kilograms divided by height in meters squared (kg/m²). The formula is:
BMI = weight(kg) / (height(m))²
Real-World Examples
Let’s calculate the BMI for three individuals:
- John: Weight = 75 kg, Height = 1.8 m, BMI = 23.15
- Jane: Weight = 65 kg, Height = 1.65 m, BMI = 23.88
- Bob: Weight = 90 kg, Height = 1.75 m, BMI = 29.17
Data & Statistics
| BMI | Category |
|---|---|
| < 18.5 | Underweight |
| 18.5 – 24.9 | Normal weight |
| 25 – 29.9 | Overweight |
| 30 or above | Obesity |
Expert Tips
- Regularly monitor your BMI to track your weight changes.
- Use our calculator to set and achieve healthy weight goals.
- Consult a healthcare professional for personalized advice.
Interactive FAQ
What is a healthy BMI?
A healthy BMI is typically considered to be between 18.5 and 24.9.
How can I improve my BMI?
Regular exercise and a balanced diet can help improve your BMI.
For more information, see the CDC’s guide on BMI and the WHO’s factsheet on obesity and overweight.