- Home
- Health & Fitness
Health & Fitness Calculators
Free health and fitness calculators: BMI, BMR, TDEE, calories, macros, body fat, running pace, heart rate zones, one-rep max and due dates.
Blood Pressure CalculatorWhere a reading falls in the 2017 ACC/AHA categories, plus MAP and pulse pressure.BMI CalculatorBody mass index, its WHO category and the healthy weight range for your height.BMR CalculatorCalories your body burns at complete rest, by the Mifflin-St Jeor equation.Body Fat CalculatorBody fat percentage from a tape measure, by the US Navy method.BSA CalculatorBody surface area by the Mosteller formula, with Du Bois and Haycock.Calorie CalculatorDaily calories to maintain, lose or gain weight.Calorie Deficit CalculatorThe daily deficit and calorie target to reach a goal weight by a set date.Calories Burned CalculatorCalories burned by an activity from its MET value, your weight and the time.Child Height PredictorA child’s likely adult height from the parents’ heights (mid-parental method).Due Date CalculatorEstimated due date from your last period, conception date or IVF transfer.Heart Rate Zone CalculatorFive training zones from your age and resting heart rate, by the Karvonen method.Ideal Weight CalculatorIdeal body weight by Devine, Robinson, Miller and Hamwi, plus the healthy BMI range.Lean Body Mass CalculatorLean body mass from height and weight, by the Boer formula.Macro CalculatorGrams of carbs, protein and fat for your daily calories.Marathon Pace CalculatorThe pace and mile-by-mile splits for your goal marathon time.Max Heart Rate CalculatorEstimated maximum heart rate by Tanaka, 220 − age and other formulas.One Rep Max CalculatorEstimated 1RM from a weight and reps, with a percentage chart.Ovulation CalculatorEstimated ovulation day and fertile window from your cycle length.Pace CalculatorSolve running pace, finish time or distance from the other two.Pregnancy Weight Gain CalculatorRecommended pregnancy weight gain for your pre-pregnancy BMI (IOM 2009).Protein CalculatorDaily protein in grams from your body weight and training.Race Time PredictorPredict a finish time at a new distance from a recent race, by Riegel’s formula.Sleep CalculatorBedtimes or wake-up times that land at the end of a 90-minute sleep cycle.Steps to Miles CalculatorConvert a step count to miles or km using your stride length.TDEE CalculatorTotal calories you burn in a day: BMR × your activity level.VO2 Max CalculatorEstimate VO2 max from a 12-minute run or your resting heart rate.Waist-to-Height Ratio CalculatorWaist ÷ height — the “keep your waist under half your height” check.Waist-to-Hip Ratio CalculatorWaist ÷ hip, compared with the WHO cut-off for your sex.Water Intake CalculatorA daily water target from your body weight and exercise.Weight Loss CalculatorHow long it takes to reach a goal weight at a chosen daily calorie deficit.Weight Loss Percentage CalculatorPercent of body weight lost between a starting and a current weight.