# A great way to lose weight and solve the question "Why should I take algebra  in High School?"

Document created by Ruth Woodall on Jan 2, 2013Last modified by Ruth Woodall on Jan 2, 2013
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Basal Metabolic Rate (BMR) Calculator By Dennis Thompson Jr. Medically reviewed by Cynthia Haines, MD

Calculating Your BMR The easiest way to measure your BMR is to use an online calculator, like the one at My Calorie Counter. This calculator factors in your height, weight, gender, and age, and activity level, then assesses how many calories you need to eat daily just to maintain your current weight. You can do the math yourself, using the appropriate equation:

• If you’re a man, your BMR is equal to: 66 + (6.23 x weight in pounds) + (12.7 x height in inches) - (6.8 x age in years). For example, if you’re 170 pounds, 5’11”, and 43, your BMR is 66 + (6.23 x 170) + (12.7 x 71) – (6.8 x 43) = 1734.4 calories.

• If you’re a woman, your BMR is equal to: 655 + (4.35 x weight in pounds) + (4.7 x height in inches) - (4.7 x age in years). For example, if you’re 130 pounds, 5’3”, and 36, your BMR is 665 + (4.35 x 130) + (4.7 x 63) – (4.7 x 36) = 1357.4 calories. Next figure out your total daily calorie requirement by multiplying your BMR by your level of activity:

• If you rarely exercise, multiply your BMR by 1.2.

• If you exercise on 1 to 3 days per week, doing light activity, multiply your BMR by 1.375.

• If you exercise on 3 to 5 days per week, doing moderate activity, multiply your BMR by 1.55.

• If you exercise 6 to 7 days per week, doing vigorous activity, multiply your BMR by 1.725.

• If you exercise every day and have a physical job or if you often exercise twice a day, multiply your BMR by 1.9. If the man in the example exercises 3 days a week, doing moderate activity, his daily caloric requirement is 1734.4 x 1.55, or 2688.3 calories. If the woman in the example exercises 6 days a week, her daily caloric requirement is 1357.4 x 1.725, or 2342.5 calories. This calculation gives you the number of calories you burn in one day at your current level of activity; in other words, this is the number of calories it takes to stay at the weight you are if you don’t change anything.