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## Background

This calculator provides several useful outputs including the calculated 'Body Mass Index' or BMI.  It will also estimate your 'Basal Metabolic Rate' or BMR.  Also included is an estimate of your 'Total Energy Expenditure' or TEE which indicates the number of calories needed per day to maintain your current weight.

## Input:

Age:       Height

Weight
:

How much weight do you want to lose? (same units as above)

Gender

Daily activity level
?

Current daily activity level?

Sedentary.  Little to no regular exercise.
(factor 1.2)

Mild activity level: Intensive exercise for at least 20 minutes 1 to 3 times per week. This may include such things as bicycling, jogging, basketball, swimming, skating, etc.  If you do not exercise regularly, but you maintain a busy life style that requires you to walk frequently for long periods, you meet the requirements of this level.
(factor 1.375)

Moderate activity level: Intensive exercise for at least 30 to 60 minutes 3 to 4 times per week. Any of the activities listed above will qualify.    (factor 1.55)

Heavy or (Labor-intensive) activity level: Intensive exercise for 60 minutes or greater 5 to 7 days per week (see sample activities above).  Labor-intensive occupations also qualify for this level.  Labor-intensive occupations include construction work (brick laying, carpentry, general labor, etc.). Also farming, landscape worker or similar occupations.     (factor 1.7)

## Background

Background information:
The BMI (body mass index) determines if your weight is in proportion to your height based on Federal guidelines released by the National Heart, Lung, and Blood Institute. The BMI is helpful in  determining health risks and appropriate interventions.

Basal energy expenditure: the amount of energy required to maintain the body's normal metabolic activity, i.e. respiration, maintenance of body temperature etc.

## Basal Energy Expenditure Equations:

Male:  BEE = 66.67 + 13.75W + 5H - 6.76A

Female: BEE = 665.1 + 9.56W +1.85H -4.68A.

H= height in cm , W= weight in kg,  A= age in years.

Maintain current weight (calories) = BEE x activity factor

Maximum calories allowed that promote weight loss: (BEE x activity factor) - 500

## Reference

Harris JA, Benedict FG. A biometric study of human basal metabolism. Proc Natl Acad Sci USA 1918;4(12):370-3.

Estimated 'Calorie' Calculators

Several of these calculators may be particularly useful for dieters.  Just about every single MAJOR calorie/ energy equation that has been released over the last 90 years is included below.   Each calculator has a customized printout option for easy analysis.  Recommendation: Try each calculator - print out the results -  then compare!
Basal Metabolic Rate (BMR) Overview.

Body Weight Calculators

• Adjusted Body Weight Calculator and Ideal Body Weight Calculator
• Body Mass Index Calculator - BMI - Determines if your weight is in proportion to your height based on Federal guidelines released by the National Heart, Lung, and Blood Institute. The BMI is helpful in determining health risks and appropriate interventions.
• Dieting Calculator - This calculator provides several useful outputs including the calculated 'Body Mass Index' or BMI. It will also estimate your 'Basal Metabolic Rate' or BMR. Also included is an estimate of your 'Total Energy Expenditure' or TEE which indicates the number of calories needed per day to maintain your current weight.

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