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Health information,
made simple.

Clear, plain-English answers to everyday health questions.

Explore tools Safety info

Our tools

Quick checks. Straight answers.

Nothing you type ever leaves your device. New tools added regularly.

⚖️ Live
BMI Calculator
Find out if your weight is in a healthy range for your height. Works in metric and imperial.
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❤️ Live
Vitals Checker
Blood pressure, pulse, or oxygen saturation — see if your reading is normal for your age.
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🔬 Live
Body Health Check
BMI, waist-to-height ratio, and body fat estimate — a deeper picture of your body composition.
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🧪 Coming soon
More on the way
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Important

Please read before using any tool.

⚠️
Not medical advice
Everything here is for general information only. Our tools do not diagnose, treat, or replace a doctor. Never make health decisions based solely on a result from this site.
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In an emergency
Chest pain, difficulty breathing, loss of consciousness? Call 999 immediately. Do not use this website instead of seeking urgent help.
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Worried about a result?
Contact your GP or call NHS 111. Online help is also available at 111.nhs.uk any time.
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Your privacy
We do not store anything you enter. All calculations happen in your browser. Nothing is sent to any server.
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Accuracy & limits
Our tools follow recognised clinical guidelines, but results depend on what you enter. A single number cannot capture the full picture of your health.
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Children & vulnerable groups
These tools are for adults. Normal ranges differ significantly for children, pregnant women, and people with existing conditions. Always consult a clinician.