BMR Calculator
Calculate your Basal Metabolic Rate (BMR) using Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle equations.
Input Parameters
Enter details for calculation.
Basal Metabolic Rate
Expert Tip
BMR represents the energy expended while at rest in a neutrally temperate environment. It accounts for about 60-75% of your total daily energy expenditure.
Calculation Methodology & Details
Formula
Calculates the base calorie amount your body requires to maintain vital functions at complete rest.
Important Disclaimer
The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
How BMR is Calculated
Follow these steps to use this calculator:
Select Formula & Sex
Mifflin-St Jeor is the current clinical standard.
Enter Weight, Height & Age
Ensure accurate parameters are entered.
View Result
Read your basal metabolic rate in daily calories.
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ℹ️ About this Calculation
This dietary and nutrition calculator helps optimize energy intake, macronutrient distribution, and dietary planning based on clinical metabolic guidelines and evidence-based nutrition science.
Variable Glossary
Dietary & Body Metrics
Calorie targets, macro ratios, body weight, activity level, or nutrient quantities consumed.
Metabolic Factors
Basal energy expenditure formulas (Mifflin-St Jeor, Harris-Benedict) and recommended daily allowances (RDA).
How to Calculate Step-by-Step
Step 1
Enter your personal stats, body weight, and physical activity multiplier.
Step 2
Select your health objective (maintenance, weight loss deficit, or muscle gain surplus).
Step 3
Get your tailored daily energy targets, macronutrient split, and nutrition guidelines.