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.

BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic life-sustaining functions like breathing, circulation, and cell production while at rest.

How accurate is the BMR calculator?

The Mifflin-St Jeor equation used in this calculator is considered the most accurate for estimating BMR, with a typical accuracy within 10% for most individuals.

What's the difference between BMR and TDEE?

BMR is your resting metabolism, while TDEE (Total Daily Energy Expenditure) includes BMR plus calories burned through activity. TDEE = BMR × Activity Factor.

Basal Metabolic Rate Calculator

Calculate your BMR using the Mifflin-St Jeor equation. Discover how many calories your body burns at rest and your Total Daily Energy Expenditure (TDEE).

Patient Information

Gender

Age

years

Weight

Height

BMR Result

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What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest to maintain basic physiological functions like breathing, circulation, and cell production.

Mifflin-St Jeor Equation

This calculator uses the Mifflin-St Jeor equation, considered one of the most accurate methods for calculating BMR. It factors in your weight, height, age, and gender.

Using Your Results

Your TDEE (Total Daily Energy Expenditure) shows how many calories you burn based on your activity level. Use this to plan your diet for weight loss, maintenance, or gain.

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Mifflin-St Jeor Equation

For Men

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

For Women

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

Medical Reference

Mifflin et al. (1990)

M. Mifflin, S. St Jeor, L. Hill, B. Scott, S. Daugherty, Y. Koh. A new predictive equation for resting energy expenditure in healthy individuals. Am J Clin Nutr 51 (1990) 241–247.

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Author

Dr. Beltrán J.F.

Basal Metabolic Rate Calculator

Patient Information

What is BMR?

Mifflin-St Jeor Equation

Using Your Results

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Calculation Reference

Mifflin-St Jeor Equation

For Men

For Women

Medical Reference