BMR Calculator
Your Basal Metabolic Rate (BMR) is the minimum calories your body needs to survive at rest. It's the foundation of any nutrition or fitness plan.
What is Basal Metabolic Rate?
Why BMR Matters
Your BMR accounts for 60–75% of all calories you burn daily. Even completely sedentary people need to eat at least their BMR to support vital organ function, breathing, circulation, and cell repair.
BMR vs TDEE
BMR is your calories at zero activity. Multiply by an activity factor (1.2 for sedentary to 1.9 for extremely active) to get your TDEE — the real target for any diet plan.
What Affects Your BMR?
Lean muscle mass is the biggest factor — muscle tissue burns more calories than fat even at rest. Age, hormones, and genetics also play a role. Building muscle through resistance training is the best way to raise your BMR long-term.
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