BMI Calculator Wrong??

cbbn11
cbbn11 Posts: 121 Member
edited November 12 in Health and Weight Loss
I used the BMI calculator from MFP and it tells me my estimated BMR is: 2,260 calories/day. Now when I do the calculations on my own with the same formula it tells me 3,300 calories/day.

My question is why such a difference? And what should it be?
I am 42, 6'3, and 281 lbs

Replies

  • StarryEyed500
    StarryEyed500 Posts: 225 Member
    BMI is a number between 0 and 100. Do you mean BMR?

    Your BMR, using the Mifflin equation, is 2260.

    The 3300 you have, does that include an activity multiplier? 2260 x 1.5 = 3385.
  • cbbn11
    cbbn11 Posts: 121 Member
    Yes sorry I ment BMR and yes, I forgot I included the exercise.
    Thank you for the help.
    So basically as long as I keep eating 1800-2000 calories a day I should be dropping fast?
  • dawlschic007
    dawlschic007 Posts: 636 Member
    My understanding is that it is not good to eat below your BMR (in your case, 2260) because that is what it takes for your body to function if you were in a coma doing absolutely nothing.

    You can find out the calorie amounts you should be eating at this website: http://www.fat2fitradio.com/tools/bmr/
  • cbbn11
    cbbn11 Posts: 121 Member
    I did the website and there is no way I can eat 3000+ calories a day.
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