# Calculating body mass index with BMI calculators can be tricky

**Posted:**December 30, 2014

**Filed under:**different 1 Comment

**What is BMI?
**The acronym stands for body mass index. It basically tells you whether your body weight is in normal range or not. If not in normal range you should act and either gain or lose weight.

**3 zones of BMI
**You can be under-weight, normal weight or over-weight. Here’s an accurate chart for your consideration.

up to 18.4 BMI is low

18.5 – 24.4 BMI ideal

25.6 – 29.9 high BMI

30.0 – 39.9 BMI is very high

up to 18.4 BMI is too low

18.5 – 24.4 BMI ideal

25.6 – 29.9 high BMI

30.0 – 39.9 BMI is very high

An example – a person who is 190 cm tall and has 100 kg will have a high BMI which does not necessary mean that the person is obese. On the other hand a person who is 160 cm tall and weights 60 kg will most likely have a lower BMI but that does not mean that the person is in good shape.

Furthermore all these calculators use static formulas and are by default not that accurate. For proper assessment of your BMI you should consult a professional which will do the following.

- measure your body fat percentage
- measure the amount of water in your organism
- take accurate measures of your weight and height

Based on this metrics your BMI can be calculated more accurately.

**Take a look at yourself in the mirror**

For an average John a bmi calculator will produce fairly accurate numbers. If you are unsure you can still fall-back to an old school method of assessing whether your body weight is normal or not.

Just take a look at yourself in the mirror. Satisfied with appearance? Then you’re most likely normal weight. Not satisfied with your appearance? Well then most likely your BMI is not in normal range.

[…] Here is a BMI chart for your reference and a BMI calculator tool to help you calculate your body mass index. […]