BMI calculator
What is BMI?
BMI (Body Mass index) is an approximate indicator of being underweight, healthy weight or overweight.
It is important to note that the BMI value should be taken into consideration along with gender and age and even with that it is an inaccurate value to make conclusions from. It does not take into consideration muscle mass, different body builds etc. (muscles are heavier than fat, so a given individual can have a higher BMI due only to a larger muscle mass).
BMI is considered primarily a statistical tool and in clinical practice much precise measurements are taken such as subcutaneous fat tissue depth measurements, etc.
BMI calaculation
BMI is calculated using a formula.
BMI = weight [kg] / height [m]2
BMI calculator for adults over 18 years old
BMI calculation based on age, weight and height.
Determining weight status based on BMI
BMI value and weight status:
| age
|
underweight
|
healthy weight
|
overweight | obesity
|
severe obesity
| |
| 18 - 24 |
< 19
|
19 - 23,9
|
24 - 28,9
|
29 - 39
|
> 39
| |
|
< 20 |
20 - 24,9
|
25 - 29,9
|
30 - 40
|
> 40
| |
|
35 - 44
|
< 21 |
21 - 25,9
|
26 - 30,9
|
31 - 41
|
> 41
| |
|
45 - 54
|
< 22 |
22 - 26,9
|
27 - 31,9
|
32 - 42
|
> 42
| |
|
55 - 64
|
< 23 |
23 - 27,9
|
28 - 32,9
|
33 - 43
|
> 43
| |
|
65+
|
< 24 |
24 - 28,9
|
29 - 33,9
|
34 - 44
|
> 44
|
overweight - at risk for low and slightly elevated health risks
obesity and severe obesity -at risk for high health risks
News on health and BMI
BMI calaculator questions and answers
Why is BMI not always accurate?
The BMI index does not take into account muscle mass, different body types and many other factors that make it inaccurate.
How is BMI calculated?
BMI is calculated based on weight and height.
