Health & Beauty Calculators
BMI Calculator
Body Mass Index from your height and weight.
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Daily Calorie Calculator
BMR and daily calorie needs (Mifflin–St Jeor).
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Water Intake Calculator
How much water to drink for healthy, glowing skin.
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Ideal Weight Calculator
Healthy weight range for your height.
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Body Fat Calculator
US Navy method – needs a tape measure.
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Pregnancy Due Date
Estimated due date from your last period.
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Heart Rate Zones
Target zones for fat burn and cardio (Karvonen).
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Macro Calculator
Protein, carbs and fat split from your calories.
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Calculators give general estimates only and are not medical advice.