Bm1 Male Calculator

Metric uses kilograms and centimetres; US uses pounds with feet and inches; UK uses stones and pounds.
Body weight: kilograms (metric), pounds (US) or whole stones (UK).
Only used with UK stones-and-pounds: the pounds part, e.g. 11 st 4 lb is weight 11 and extra pounds 4.
Used when the unit system is metric.
Used when the unit system is US or UK.
The inches part of a feet-and-inches height.
WHO, CDC and NHS share the same adult cut-points. The Asian table uses the lower WHO action points of 23 and 27.5.
Adult categories apply from age 20. Under 20, BMI must be read against a growth chart instead.
BMI
24.22 kg/m^2
BMI Calculator
Category
Normal range
Healthy BMI range
18.5 - 24.9
Healthy weight, lower
53.47 kg
Healthy weight, upper
71.96 kg
Healthy weight, lower
117.9 lb
Healthy weight, upper
158.6 lb
Weight to lose (+) or gain (-) to reach the healthy range
0.00 kg
BMI prime (BMI / 25)
0.969
Ponderal index
14.25 kg/m^3
Weight used
70.00 kg
Height used
170.0 cm
Classification table used
WHO international classification
Worked out from World Health Organization - Body mass index (BMI) and the international classification of adult underweight, overweight and obesity and 4 other sources.
WHO recommends lower action points (23 and 27.5) for people of South Asian, Chinese and other Asian ancestry; switch the classification table if that applies.
BMI is a population screening measure, not a diagnosis. It does not distinguish muscle from fat and is not valid for children and teenagers, during pregnancy, or for highly muscular people. Discuss any weight concern with a clinician.

How this is worked out

5 steps
  1. Weight = 70.0 kg = 70 kg
  2. Height = 170 cm = 1.7 m, so height squared = 2.89 m^2
  3. BMI = 70 / 2.89 = 24.22 kg/m^2
  4. WHO international classification: 24.22 falls in "Normal range". WHO adult cut-points: under 18.5 underweight, 18.5-24.9 normal, 25.0-29.9 overweight, 30.0 and above obese.
  5. Healthy weight for this height = 18.5 to 24.9 x 2.89 = 53.47 to 71.96 kg

Results are general information, not financial, tax, legal, medical or engineering advice.