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Health & Body Calculators

BMI, body composition, hydration, heart rate zones, and daily calories.

BMI & Body Composition Calculator

Calculate Body Mass Index (BMI), healthy weight range, Prime Index, and health risk status based on WHO guidelines.

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Target Heart Rate & Karvonen Training Zones

Calculate optimal cardio zones 1 through 5 (Active Recovery to VO2 Max) based on resting heart rate and maximum cardiac capacity.

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Daily Water Intake & Hydration Calculator

Calculate optimal daily fluid requirements based on body mass, climate temperature, and exercise intensity.

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