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Health & Fitness Calculators
Evidence-based tools for BMI, BMR, calorie needs, and daily energy expenditure. Explore our independently verified calculation tools below.
BMI Calculator
CalculatorCalculate Body Mass Index for adults using Metric or Imperial units with WHO weight classifications.
Formula: BMI = weight(kg) / height(m)^2
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BMR & Calorie Calculator
CalculatorEstimate daily resting metabolic rate (Mifflin-St Jeor) and total maintenance calories.
Formula: Mifflin-St Jeor Formula * Activity Factor
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