What health calculators are available on Calc4Health?

Calc4Health offers 17+ professional health calculators including BMI, BMR, TDEE, body fat percentage, target heart rate, daily water intake, waist-hip ratio, Cooper test, relative fat mass, body surface area, body adiposity index, body shape index, conicity index, heart rate zones, new BMI Trefethen calculator, Blood Alcohol Content (BAC) calculator, and Dietary Reference Intake (DRI) calculator.

Are Calc4Health calculators free to use?

Yes, all health calculators on Calc4Health are completely free to use. No registration or payment required. Access professional medical calculation tools instantly for your health and fitness monitoring needs.

How accurate are the health calculators?

Calc4Health calculators use scientifically validated formulas and equations from medical research. They provide accurate estimates based on established medical standards, though results should be used for reference and not replace professional medical advice.

TDEE (Total Daily Energy Expenditure) is the total number of calories you burn per day, including BMR plus calories burned through physical activity and digestion.

How do I use TDEE for weight loss?

For weight loss, consume 500-1000 calories below your TDEE to lose 1-2 pounds per week. A 500 calorie daily deficit equals approximately 1 pound of weight loss per week.

What activity level should I choose?

Sedentary: little/no exercise. Lightly active: 1-3 days/week. Moderately active: 3-5 days/week. Very active: 6-7 days/week. Extra active: physical job or training twice daily.

Total Daily Energy Expenditure Calculator

Calculate your TDEE using the Mifflin-St Jeor equation combined with your activity level. Determine your complete daily caloric needs for weight management.

Patient Information

Gender

Age

years

Weight

Height

Activity Level

TDEE Result

Complete the form to view your calculation

What is TDEE?

Total Daily Energy Expenditure (TDEE) is your BMR multiplied by an activity factor. It represents the total calories you burn in a day including exercise and daily activities.

Weight Management

TDEE helps determine caloric needs for weight goals. Consume more than your TDEE to gain weight, less to lose weight, or equal to maintain your current weight.

Activity Factors

Activity levels range from sedentary (1.2x BMR) to extra active (1.9x BMR). Choose the level that best matches your weekly exercise routine and daily activity.

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Calculation Method

Step 1: Calculate BMR (Mifflin-St Jeor)

Men: BMR = (10 × weight[kg]) + (6.25 × height[cm]) - (5 × age) + 5
Women: BMR = (10 × weight[kg]) + (6.25 × height[cm]) - (5 × age) - 161

Step 2: Apply Activity Factor

TDEE = BMR × Activity Factor
Sedentary: 1.2 | Light: 1.375 | Moderate: 1.55 | Very: 1.725 | Extra: 1.9

Medical References

BMR Equations - Mifflin et al. (1990)

Mifflin, M. D., St Jeor, S. T., Hill, L. A., Scott, B. J., Daugherty, S. A., & Koh, Y. O. (1990). A new predictive equation for resting energy expenditure in healthy individuals. The American Journal of Clinical Nutrition, 51(2), 241-247.

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Activity Factors - FAO/WHO/UNU (2004)

FAO/WHO/UNU Expert Consultation. (2004). Human energy requirements: Report of a joint FAO/WHO/UNU expert consultation, Rome, 17-24 October 2001. FAO Food and Nutrition Technical Report Series 1. Rome: Food and Agriculture Organization of the United Nations.

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Author

Dr. Beltrán J.F.