8 free calculators
Health & body calculators
BMI, calories, pregnancy due dates and alcohol units, based on NHS guidance.
BMI calculatorBody mass index in st/lb or kg, with NHS weight ranges.Calorie calculatorDaily calories to maintain or gently lose weight.Pregnancy due date calculatorDue date, weeks pregnant and NHS scan dates.Alcohol units calculatorUnits in your weekly drinks vs the NHS 14-unit guideline.Running pace calculatorPace per km or mile, finish times and splits, 5k to marathon.Water intake calculatorDaily fluid in litres and glasses, from NHS and EFSA guidance.Sleep calculatorBedtimes and wake-up times based on 90-minute sleep cycles.Ovulation calculatorFertile window, ovulation day and next period dates.