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Body Metrics
Calculate your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation. Estimate how many calories your body burns at rest each day. Multiply by activity factor with [TDEE Calculator](/tools/tdee-calculator).
Formula
Mifflin-St Jeor: BMR = 10 x weight + 6.25 x height - 5 x age + 5 (men) or -161 (women)
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Nutrition
Calculate your Total Daily Energy Expenditure (TDEE) instantly using the Mifflin-St Jeor equation. Free, evidence-based calorie calculator with BMR breakdown and activity adjustments.
Formula
Mifflin-St Jeor: Male BMR = 10×weight + 6.25×height − 5×age + 5; Female BMR = 10×weight + 6.25×height − 5×age − 161. TDEE = BMR × Activity Multiplier.
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