Health tools
Check an adult BMI for report preparation, understand blood pressure ranges, project running race times, and estimate triathlon swim, bike, run, and transition splits with clear assumptions.
Tools
NHS-style BMI and blood pressure range checks, running race pace projections, and triathlon split planning.
Calculate adult BMI using NHS-style categories, with context about BMI limits and waist-to-height measurements.
Open toolHealth & FitnessCheck a blood pressure reading against NHS/NICE-style low, ideal, raised, high, and very-high ranges.
Open toolHealth & FitnessConvert running pace, time, and distance into projected 5K, 10K, half marathon, and marathon finish times.
Open toolHealth & FitnessEstimate sprint, Olympic, middle-distance, full-distance, or custom triathlon finish times from swim, bike, run, and transition pacing.
Open toolQuestion guides
Use these pages when you have a specific question and want the closest calculator or utility.
Overview
The health and fitness calculators are practical planning tools for body-measurement reports, blood pressure range context, race pacing, and triathlon split estimates.
BMI and blood pressure ranges are presented carefully because they are not diagnoses. They can be useful when a report asks for numbers or when you want to understand a reading, but they should not replace NHS guidance or clinical advice.
Good for
FAQs
No. It is an independent planning calculator using NHS-style adult BMI categories. BMI is not a diagnosis and does not directly measure body fat, muscle mass, fitness, or health.
BMI can be misleading for muscular people and does not show fat distribution. NHS and NICE guidance recommend interpreting BMI cautiously and considering waist-to-height context where appropriate.
No. It shows an NHS/NICE-style range for a reading. Diagnosis usually needs repeat checks or home/ambulatory monitoring, and symptoms or very high readings should be handled through NHS 111, 999, or a clinician as appropriate.
No. They use even-pace maths. Course profile, weather, fatigue, training, fuelling, transitions, equipment, and race conditions can materially change actual performance.