Biometrics & Nutrition Science

Health & Fitness Calculators

Calculate your body metrics using peer-reviewed physiological formulas. All health calculators on Calculatorji reference WHO and ICMR standards to give you actionable, scientifically grounded estimates.

How to Choose the Right Calculator:Start with the BMI Calculator to determine your baseline category. Then use the TDEE Calculator to estimate your daily maintenance calories before setting up a fitness or nutrition plan.

Body Metrics & Weight Management

Evaluate body mass, healthy weight ranges, and target weight loss dates.

BMI Calculator

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Calculate Body Mass Index with standard WHO and Asian-specific health thresholds.

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Calorie Deficit Calculator

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Plan safe weekly fat loss targets with personalized sustainable daily calorie deficits.

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Metabolism, Energy & Hydration

Understand your daily caloric needs for weight maintenance and optimal hydration.

TDEE Calculator

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Total Daily Energy Expenditure based on BMR (Mifflin-St Jeor formula) and exercise level.

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Water Intake Calculator

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Calculate daily hydration requirements adjusted for body weight, climate, and workout intensity.

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