How to Calculate Your Basal Metabolic Rate (BMR)
Learn how to calculate your Basal Metabolic Rate, why it matters for weight management, and how to use it to build a personalized diet plan.
Guide overview
Your Basal Metabolic Rate is the foundation of every diet and fitness plan. Understanding your BMR helps you eat the right amount of calories.
Learn how to calculate your Basal Metabolic Rate, why it matters for weight management, and how to use it to build a personalized diet plan.
Key points from the source guide
The source guide defines BMR as the calories burned at complete rest for basic life functions.
It highlights the Mifflin-St Jeor formula as the practical calculation method.
It explains why BMR changes with body size, muscle mass, weight loss, and activity planning.
Try the related Toolars calculators
This migrated guide links to these Toolars tools: bmr-calculator, tdee-calculator.
Tools mentioned in this article
Frequently asked questions
- What is the difference between BMR and TDEE?
- BMR is your baseline calorie burn at rest. TDEE includes BMR plus calories burned through daily activities and exercise. TDEE is what you use for meal planning.
- Why did my BMR go down after losing weight?
- Weight loss, especially muscle loss, reduces BMR. This is why weight loss plateaus occur. Strength training and adequate protein intake help preserve muscle and maintain BMR during dieting.