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Free Health & Fitness Calculators

Calculate calories, macros, BMI, nutrition goals and fitness metrics with simple science-based tools.

Calculate Your Calories

Popular Health Calculators

🔥 Calorie Calculator

Find your daily calorie needs for weight loss, maintenance and fitness.

⚡ TDEE Calculator

Estimate your total daily energy expenditure.

⚖️ BMI Calculator

Check your body mass index and health range.

💪 Macro Calculator

Calculate protein, carbs and fat targets.

🥤 Protein Calculator

Find your ideal daily protein intake.

💧 Water Intake Calculator

Calculate your recommended daily water amount.

Why Use HealthyTools?

HealthyTools creates simple, free health calculators to help you understand your body, nutrition and fitness goals. Our tools are designed for everyday wellness, weight management and healthy lifestyle planning.