Free Health Calculators

Instantly calculate your BMI, hydration needs, and more. No sign-up, no tracking — just fast, free results.

BMI Calculator

Check your Body Mass Index (BMI) and see your weight category instantly.

Hydration Calculator

Calculate how much water your body needs daily based on your weight.

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What is BMI?

Understand what Body Mass Index means and how it affects your health.

What is Hydration?

Learn why water is essential for health and how much your body needs daily.

Start taking control of your health today.

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MyHealthCalc offers a growing collection of free online health tools designed to help you make informed decisions. From BMI and hydration calculators to upcoming tools like BMR and calorie burn estimators, we’re building a hub of research-backed health calculators that are fast, private, and mobile-friendly.

Frequently Asked Questions

Are these tools really free?

Yes! All tools on MyHealthCalc are completely free with no sign-up required. We support the site through non-intrusive ads.

Is my data saved or tracked?

Nope. Everything is calculated directly in your browser. We don’t collect or store any personal data.

How accurate are these calculators?

Our tools are based on trusted formulas and medical research, but they are for educational purposes only. Always consult with a professional for medical advice.