Health

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BMI Calculator

BMI (Body Mass Index) gives a quick indication of whether your weight is appropriate for your height. Enter your weight and height to see your category instantly, along with an explanation of the formula behind it. Note: this is a general estimate, not medical advice.

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BMR Calculator

Your basal metabolic rate (BMR) is the number of calories your body burns per day at complete rest. This number is the foundation for nutrition and fitness planning: multiply it by your activity factor to determine your total daily energy expenditure (TDEE).

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Body Fat Calculator

The US Navy method estimates your body fat percentage with just a tape measure, no calipers needed. Enter your waist, neck, height (and, for women, hip circumference) for an indication.

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Calorie Calculator (TDEE)

Your TDEE (total daily energy expenditure) is the number of calories you burn per day, including activity. This figure is your starting point for maintaining, losing or gaining weight.

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Water Intake Calculator

Hydration is essential for body function. How much water you need depends on your weight, activity level, climate and health. This calculator computes your daily water intake based on scientific research.