BMI
Tomáš Soušek
What is BMI (Body Mass Index)?
It’s a value taken from a person’s height and weight
It determines if you are underweight, healthy, or obese.
How to calculate BMI?
BMI is calculated with this formula: BMI = mass (kg) / height (m)2
You can also quickly calculate your BMI just by entering your information here:
Result categories
The BMI will place you in one of the six categories. As you can see from this table:
| Classification | Body Mass Index Score |
|---|---|
| Underweight | less than 18.5 |
| Normal Weight | 18.5 – 24.9 |
| Overweight | 25 – 29.9 |
| Obesity (Class 1) | 30 – 34.9 |
| Obesity (Class 2) | 35 – 39.9 |
| Extreme Obesity (Class 3) | 40+ |
Risks of having high BMI
If you are overweight and physically inactive, you may develop:
- Cardiovascular diseases associated with high cholesterol
- Gallbladder disease
- Type 2 diabetes
- Sleep apnea and snoring
- Joint pain
- Certain types of cancer
Risk of having low BMI
If you are underweight, you may develop:
- Worse immune function
- Respiratory disease
- Digestive diseases
- Cancer
- Osteoporosis
But BMI isn’t always the best indicator of health
The more body fat you have, the higher your health risk. However, BMI cannot differentiate between body fat and muscle weight.
Also, the result is not suitable for children and adolescents.
How to reduce your BMI?
- Set a realistic goal
- Track your weight loss progress
- Weigh yourself regularly to figure out what’s working
- Get moving with a workout
- Set workout targets
- Make a proper diet
- Stay consistent, even if you aren’t seeing results right away
