UK Health & Fitness 2026
Free, accurate tools for BMI, BMR, calorie intake, RPE, ABG, and more – with NHS guidelines.
Track your health with confidence – updated for 2026
BMI Calculator
Body mass index (NHS classifications)
CalculateBlood Pressure
Check systolic & diastolic levels
CalculateWeight Loss
Track how much weight you've lost
CalculateFFMI Calculator
Fat-Free Mass Index
CalculateIVF Due Date
Estimate IVF pregnancy due date
CalculateNHS Pregnancy
Pregnancy due date & milestones
Calculate
Based on NHS guidelines
Updated for 2026
100% Free • No registration
Why Britons trust our tools
Evidence‑based
Formulas from peer‑reviewed medical literature.
Updated for 2026
Reflects latest health guidelines.
Works on all devices
Track your health on the go.