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Fitness & Health Calculators

Use our free fitness calculators to track your health, plan your diet, and achieve your fitness goals with accurate, science-based tools.

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BMI Calculator

Check whether your weight is underweight, normal, overweight, or obese.

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BMR Calculator

Calculate how many calories your body burns at complete rest.

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TDEE Calculator

Find your total daily calorie needs based on your activity level.

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Calorie Needs Calculator

Know how many calories you need to lose, maintain, or gain weight.

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Lean Body Mass Calculator

Measure your weight without body fat for better fitness planning.

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Body Fat Calculator

Estimate your body fat percentage using proven formulas.

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Ideal Weight Calculator

Find your healthy weight range based on height and gender.

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Protein Intake Calculator

Calculate daily protein needs for muscle gain and fat loss.

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Macro Split Calculator

Get your ideal carb, protein, and fat ratio for your fitness goals.

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Water Intake Calculator

Know how much water your body needs daily for optimal health.

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Waist-to-Hip Ratio Calculator

Check your fat distribution and health risk levels.

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How to Use These Calculators Effectively

Start with BMI and Body Fat calculators to understand your body composition. Then calculate your calorie needs with BMR and TDEE calculators. Use Lean Body Mass, Ideal Weight, Protein, Macro, and Water Intake calculators to plan diet and track fitness goals.

Combine multiple calculators to get a complete view of your health and optimize your fitness plan.

Frequently Asked Questions

Are these fitness calculators free?

Yes! All calculators are 100% free and work on any device, including mobile phones and tablets.

Do I need to enter my units carefully?

Yes. Choose metric or US units as appropriate for accurate results.

Can I use these calculators for weight loss or muscle gain?

Absolutely. The calculators are designed for all fitness goals, including fat loss, muscle gain, or maintenance.

How accurate are these calculators?

They provide estimates based on scientific formulas and are ideal for general fitness tracking and nutrition planning.

Can I track progress over time?

Yes. Use these calculators regularly to monitor changes in your body composition and nutrition intake.

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