Metabolic Age Calculator Online BMR Calculation Formula

Metabolic age is connected to calories consumed by metabolic system. It is directly dependent on BMR (Basal Metabolic Rate). BMR is amount of calories consumed by our metabolism when our body remains at rest. Its calculation is different for different genders. Here we have given the formula usually used to calculate BMR. Here can calculate you BMR after filling the details in the form given below.

Calculate your Metabolic Age

Gender :
Age : Years
Height :
     or cms
Weight: kg
     or lbs

Metabolic Age

Metabolic age is actually a comparison of BMR of people of similar age group. If you BMR falls in the range of average BMR of other age then your Metabolic Age will be that. So your metabolic age can be different from your actual age. To keep your Metabolic age below your actual age you need to control your weight. Weight is the only factor that you can control. Height and actual age can't be controlled by anybody. Our BMR increases till the age of 20 and then starts decreasing 100 Calorie per decade.

BMR (Basal Metabolic Rate)

The formula given below is known as Harris-Benedict formula, which was created in year 1919.
BMR for women = 655 + ( 4.35 x weight in pounds ) + ( 4.7 x height in inches ) – ( 4.7 x age in years )
BMR for men = 66 + ( 6.23 x weight in pounds ) + ( 12.7 x height in inches ) – ( 6.8 x age in year )

The above formulas are not used in modern calculations of BMR. Now we use a more accurate formula known as Mifflin - St Jeor formula, which was created in 1990. Mifflin - St Jeor formula is given below.
BMR for men = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5
BMR for women = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161

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Metabolic Age Calculator

Metabolic Age is calculated by comparing your BMR with Average BMR of people with similar height of different age groups. If your BMR matches with a lower age group then your metabolic age is lower than your actual calender age. Lower metabolic age is considered healthy and increases your life expectancy. We tried to find a graph or chart so that you can match it to know your, but there no such thing available on net. The comparison differs according to your ethnicity as well. People living in US will have different BMR chart than those living in Asian continent.

Why Metabolic Age is not always accurate ?

Metabolic Age is calculating the BMR and then comparing it with average BMR of different age groups. But the truth is that BMR varies depending on your geographic location, lifestyle, body type, activity level and various other unknown factors. It is nearly impossible to calculate metabolic age of every person on earth using the same BMR chart. As we read about some researches of BMR on wikipedia, we found that in a research two different person with same lean body mass of 43 kg when obeserved in a test-lab reported BMRs of 1075 kcal/day and 1790 kcal/day. The difference in BMRs of those two test subjects was equivalent to running 10km. So if you want to calculate your real BMR or Metabolic Age then is better to visit a reputed medical facility.
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