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Health calculators
UK body metrics with NICE and SACN guidance — BMI categories, ethnicity-adjusted thresholds, waist-to-height ratio, and a safe calorie-deficit planner. Clear numbers, no diet products.
Most used
BMI
Work out your BMI with UK NICE weight categories, including ethnicity-adjusted thresholds, waist-to-height ratio, and a healthy weight range in kg and stone.
Calorie Deficit Calculator
Work out your UK maintenance calories with the SACN/Henry method, a safe daily deficit, your target intake, and how long reaching your goal will take.