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BMI (Body Mass Index)

Metric

BMI = kg / m²

Imperial

BMI = 703 × lb / in²

Under < 18.5

Normal 18.5-24.9

Over 25-29.9

Obese 30+

BMR (Mifflin-St Jeor)

Men10(weight kg) + 6.25(height cm) - 5(age) + 5

Women10(weight kg) + 6.25(height cm) - 5(age) - 161

Water Intake Estimate

(Body Weight in lbs) / 2 = oz/day

Example: 150 lbs person needs ~75 oz water