How to calculate BMI ?

BMI graph
BMI graph

BMI means Body Mass Index. Nowadays BMI calculators are available online which makes calculation quick and easy. But this post can be helpful if you want to know how it is calculated. Its really simple. You can just use the formulas given below:

Formulae :
1. Metric System or MKS system:
BMI = Weight or mass(kg) / [Height (m) x Height (m)]

2. English System:
BMI = Weight or mass(kg) / [Height (m) x Height (m)]

Reference Table:

below 17 Too slim
17 – 20 Underweight
20 – 25 You are in brilliant shape
25 – 30 Minor obesity
30 – 35 Unhealthy obesity
35 – 40 Extremly unhealthy obesity
above 40 Unhealthiest obesity


Height = 66 inches
Weight = 160 lbs
BMI = 25.82

2 Replies to “How to calculate BMI ?”

  1. Sulav, I don’t have any knowledge of medical. But I hope I would learn a lot from your posts. Thank you for this info about BMI.

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