Useful tools.
A clearer next step.
Plan food and movement, understand a screening measure or compare everyday costs. Body measurements stay in your browser; no account is needed.
Adult sleep-window planner
Work back from your chosen wake-up time and duration to plan time for sleep. Local clock arithmetic, with clear limits and no account.
Plan a sleep windowFood & your dayDiet, calories & macros
Estimate maintenance calories or explore a modest weight-loss starting point, with a balanced macro example and practical food guidance.
Open calculator Useful numbersCreatine price calculator: compare exact packs
Compare delivered UK prices for Optimum Nutrition unflavoured 317g and Bulk unflavoured 1kg creatine monohydrate powder per 100g.
Open calculator Compare the full costSkincare cost per use
Compare skincare prices per 100 ml or g, per use and per 30 days using your own usage assumptions.
Open calculator Adult screeningBMI in context
Calculate adult BMI in metric or imperial units, with clear context about what the number can and cannot tell you.
Open calculator A broader viewWaist-to-height ratio
Compare waist and height using the NICE adult screening bands, with metric and imperial measurements.
Open calculator Understand the estimateResting & daily energy
Explore estimated resting energy and illustrative activity adjustments, without a calorie or weight-loss target.
Open calculator Plan your walkWalking pace
Turn distance and elapsed time into minutes per kilometre or mile, plus average speed.
Open calculator Useful numbersToothbrush ownership costs
Compare handle prices and compatible replacement-head packs over one to ten years using your own quotes.
Open calculator