Basal Metabolic Rate (BMR) Calculator
Use this Basal Metabolic Rate (BMR) calculator to Calculate your daily resting calorie burn for men and women accurately
Men vs Women BMR Differences
Men typically burn 10-15% more calories at rest due to higher muscle mass and larger organ size. This calculator uses the Mifflin-St Jeor formula (most accurate, validated against DEXA scans) with separate equations for men and women.
How to Use
- Select Male or Female gender.
- Enter weight, height, and age using Metric or Imperial units.
- Get BMR + TDEE multipliers for your activity level.
FAQs
- Why different formulas for men/women?
- Men have ~10% higher BMR due to greater muscle mass and organ size. Mifflin-St Jeor adjusts +166 calories for men vs women [web:23].
- Metric vs Imperial accuracy?
- Both equally accurate when converted properly. Metric slightly more precise for clinical use.
- Does BMR change with weight loss?
- Yes – every 5kg lost reduces BMR ~50-100 calories. Recalculate monthly.
- Muscle vs fat BMR difference?
- Muscle burns 6 cal/lb/day vs fat’s 2 cal/lb/day. Building muscle raises BMR 5-10%.
- Cold exposure effect?
- Cold increases BMR 10-20% via shivering/non-shivering thermogenesis. Sauna/heat opposite effect.