Health & fitness
Calculators for body measures, energy and fitness that explain what the numbers mean, which formula gives them and where it comes from.
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Utilities
- Blood alcohol calculatorA rough estimate of your blood alcohol in per mille (‰) and how long your body takes to clear it, by the Widmark formula., private, runs on your deviceCalculator
- Blood sugar converterConvert blood glucose between mmol/L and mg/dL, and HbA1c between mmol/mol and %, with the estimated average glucose., private, runs on your deviceConverterCalculator
- BMI calculatorYour BMI and its WHO adult category, the normal-weight range for your height, and what BMI cannot tell you., private, runs on your deviceCalculatorWeightFitness
- Body fat calculatorAn estimate of your body fat percentage from a tape measure: height, neck and waist, plus the hip for women, by the US Navy method., private, runs on your deviceCalculatorFitnessWeight
- Calories burned calculatorThe energy you use in about 200 activities, from walking and running to swimming, skiing and housework, by their MET values., private, runs on your deviceCalculatorFitnessEnergy
- Daily calorie calculatorYour resting energy (BMR) and an estimate of the energy you use in a day, in kcal or kJ, from your age, size and activity., private, runs on your deviceCalculatorFitnessEnergy
- Heart rate zone calculatorYour estimated maximum heart rate and five training zones from your age and resting heart rate, by the Karvonen heart-rate reserve method., private, runs on your deviceCalculatorFitness
- Macro calculatorTurn a daily calorie target and a split in percent into grams of protein, fat and carbohydrate, a day and per meal., private, runs on your deviceCalculatorEnergyWeight
- One-rep max calculatorYour estimated one-rep max from a set you have done, with the weights for 1 to 12 reps, by the Epley or Brzycki formula., private, runs on your deviceCalculatorFitnessWeight
- Pregnancy due date calculatorEstimate your due date, pregnancy week and trimester from a period, conception or IVF transfer date., private, runs on your deviceCalculator
- Running pace calculatorTurn a finish time into a pace and speed, or a pace into a finish time, with splits for every kilometre or mile., private, runs on your deviceCalculatorSpeedFitnessDistance
- Sleep cycle calculatorFind bedtimes or wake times using an approximate 90-minute cycle., private, runs on your deviceCalculator
- Waist-to-height ratio calculatorYour waist-to-height ratio and what it says about fat around the middle, with the NICE bands and the half-your-height rule., private, runs on your deviceCalculatorFitnessLength
Health calculators use published formulas and say which one. They give information, never medical advice.
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