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BMI Calculator Metric
Adult Body Mass Index (BMI) and
Basal Metabolic Rate (BMR) Calculator

(Also Exercise Energy Calculator,
Work It Off Calculator,
Convert kilojoules to Calories and
Record today's energy intake.)

 
Height (centimetres):
Weight (kilograms):
Age (years):
Sex:
Female
Male

Body Mass Index
(BMI):
0

Daily Energy Intake
BMR plus 20%:

0 kJ   (0 Cal)

Basal Metabolic Rate
(BMR):

0 kJ   (0 Cal)

Dieting Energy Intake
BMR less 25%:

0 kJ   (0 Cal)
Weight loss per day 0.00 kg
Weight loss per week 0.00 kg

  
 
 


BMI - Body Mass Index (Adults)
Severely underweight: less than 16.5
Underweight: from 16.5 to 18.5
Normal: from 18.5 to 25
Overweight: from 25 to 30
Obese Class I: from 30 to 35
Obese Class II: from 35 to 40
Obese Class III: over 40 over
(Source: Wikipedia)

BMR - Basal Metabolic Rate The amount of energy your body needs at rest. Think of this as the amount of energy your body needs if all it did was sleep all day.

BMR plus 20% This figure is an estimate of energy your body needs with normal activity such as office work. If you eat more than your body requires some of that extra energy will be stored.

BMR less 25% This is the figure I used as the energy intake per day to lose weight. My theory was if the body requires the energy as determined by the BMR to sustain itself, then eating less would result in stored energy being used. This figure corresponds to the figure suggested by dieting books. An estimate of the amount of weight you'll lose per day, or per week is provided when dieting at this daily energy level.

Useful links

Average sizes of men and women

Disclaimer

This calculator comes with no warranty expressed or implied. The calculator is only for informational purposes and is not guaranteed to be error free. The information on this page is not intended to be medical advice. Please be advised I am not skilled or qualified in medicine or the area of weight loss. I researched the topic and determined an approach which worked for my wife and myself. I had a check up performed by a medical professional and would advise others to do the same. It is my belief young people, pregnant women should seek medical advice before dieting.

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BMR Calculator
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