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Free UK Health Tools & Clinical Calculators

Evidence-based calculators and self-assessment tools built for the UK. Every tool cites NHS, NICE, or WHO guidelines. Results in seconds — no data stored.

NHS

Guidelines Referenced

WHO

Classification Standards

Data Stored

Free

No Registration

Clinical Calculators

WHO & NHS-referenced formulas

BMI Calculator

Calculate your Body Mass Index using the WHO classification. Metric & imperial.

Blood Pressure Checker

Check your reading against ESC/ESH 2018 hypertension classification.

Calorie Calculator

Calculate your daily calorie needs using the Mifflin-St Jeor equation (TDEE).

Self-Assessment Tools

Validated clinical scoring tools

Hay Fever Severity Score

5-question ARIA-based assessment. Find out if your symptoms are mild, moderate, or severe.

Pharmacy Business Tools

Revenue & ROI calculators for pharmacy owners

Pharmacy Revenue Calculator

Project annual revenue and ROI from your private prescribing services.

Clinical Disclaimer

All tools on this page are for informational and educational purposes only. Results do not constitute medical advice and must not be used as a substitute for professional clinical assessment. Always consult a registered healthcare professional if you have concerns about your health. RxSure tools are reviewed annually against NHS, NICE, WHO, and relevant UK clinical guidelines.

All health tools clinically reviewed by Tahir Hameed, Pharmacist Independent Prescriber (GPhC: 2210908) — Last reviewed: April 2026

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