VitalMetrics

Your Personal Health Metrics Hub

Calculate BMI, calories, body fat, pregnancy due dates, ovulation cycles, and more. All calculations are 100% private and happen in your browser. No registration required, always free.

100% Privacy

Instant Results

Mobile Friendly

Always Free

Calculators

100%

Privacy

Data Tracking

FREE

Forever

Choose Your Calculator

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How VitalMetrics Works

Simple, fast, and completely private health calculations in 3 easy steps

Choose Calculator

Select from 9 specialized calculators for BMI, calories, pregnancy, body composition, hydration, and more

Enter Your Info

Input your measurements using either metric or imperial units. All data stays in your browser

Get Results

Receive instant, accurate results with detailed explanations and health guidance

📱

Works on all devices

🔒

100% Private & Secure

📊

History Tracking

🖨️

Print & Share Results

Frequently Asked Questions

Everything you need to know about VitalMetrics and our health calculators

Are my health calculations really private?

Yes, 100%. All calculations happen directly in your web browser using JavaScript. Your health data never leaves your device - nothing is sent to our servers or any third parties. We use privacy-focused Plausible Analytics for anonymous page view statistics only, but no personal information or health data is ever collected.

Do I need to create an account to use the calculators?

No account required! Simply visit any calculator and start using it immediately. Your calculation history is saved locally in your browser, so you can access it anytime without signing in or providing any personal information.

How accurate are the calculator results?

Our calculators use scientifically validated formulas including the Mifflin-St Jeor equation for calories, US Navy method for body fat, and WHO standards for BMI. However, these are estimation tools for informational purposes. For medical advice or personalized health planning, always consult with a qualified healthcare professional.

Can I use VitalMetrics on my phone or tablet?

Absolutely! VitalMetrics is fully responsive and optimized for all devices - smartphones, tablets, and desktop computers. The interface adapts to your screen size for the best experience on any device.

Is VitalMetrics really free forever?

Yes! All 9 calculators are completely free with no hidden fees, trials, or premium upsells. We believe everyone should have access to basic health calculation tools without barriers. VitalMetrics will always remain free for core functionality.

Can I share my calculation results with others?

Yes! Each calculator includes share buttons that create a unique URL with your calculation parameters. You can share this link via social media, email, or copy it to your clipboard. You can also print or export your results as a PDF or image for your records.

Which calculator should I use first?

It depends on your goals! For general health screening, start with the BMI Calculator. For weight management, try the Calorie Calculator. Expecting mothers should use the Pregnancy Calculator, and those planning to conceive should check the Ovulation Calculator.

Does VitalMetrics work offline?

Once you've loaded a calculator page, all calculations work offline since they run entirely in your browser. However, you'll need an internet connection to initially access the website and load the calculator pages.