Fitness & Health Calculators
Body composition, nutrition targets, training metrics, pregnancy and clinical estimates.
33 of 33 available now
Body Composition
BMI CalculatorCalculate body mass index and see where you fall in the WHO weight categories.Body Fat CalculatorEstimate body fat percentage from tape measurements using the US Navy method.Army Body Fat CalculatorCheck body fat against US Army AR 600-9 standards for your age and sex.Lean Body Mass CalculatorEstimate lean body mass using the Boer, James and Hume formulas.Ideal Weight CalculatorCompare ideal body weight across the Robinson, Miller, Devine and Hamwi formulas.Healthy Weight CalculatorFind your healthy weight range for your height from the normal BMI band.Overweight CalculatorSee how far your weight sits above a healthy range and what it takes to return.Anorexic BMI CalculatorAssess BMI against underweight and anorexia severity thresholds.Body Type CalculatorIdentify your female body shape from bust, waist and hip measurements.Body Surface Area CalculatorCompute BSA using Du Bois, Mosteller, Haycock and other clinical formulas.Waist-to-Hip Ratio CalculatorCalculate waist-to-hip ratio and the cardiovascular risk band it falls in.
Nutrition & Diet
Calorie CalculatorFind your daily calorie needs for maintaining, losing or gaining weight.BMR CalculatorCalculate basal metabolic rate via Mifflin-St Jeor, Harris-Benedict or Katch-McArdle.TDEE CalculatorCalculate total daily energy expenditure from BMR and your activity level.Macro CalculatorSplit your calorie target into protein, carbohydrate and fat grams.Carbohydrate CalculatorWork out daily carbohydrate needs for your goal and training load.Protein CalculatorDetermine daily protein requirements from body weight, activity and goal.Fat Intake CalculatorCalculate recommended total and saturated fat intake for your calorie target.Water Intake CalculatorEstimate daily hydration needs from body weight, activity and climate.Weight Watcher Points CalculatorConvert nutrition label values into Weight Watchers-style points.BAC CalculatorEstimate blood alcohol content over time using the Widmark formula.
Fitness & Training
Pace CalculatorSolve for pace, time or distance and get split times for common race distances.Calories Burned CalculatorCalculate calories burned by activity and duration using MET values.One Rep Max CalculatorEstimate your 1RM from a submaximal set and get a full percentage training table.Target Heart Rate CalculatorFind your training heart rate zones from max and resting heart rate.
Pregnancy & Fertility
Pregnancy CalculatorTrack pregnancy week by week with trimester dates and key milestones.Due Date CalculatorEstimate your due date from last period, conception date or ultrasound.Pregnancy Conception CalculatorWork backwards from a due date to the likely conception window.Conception CalculatorPredict your most fertile days and best conception window from your cycle.Ovulation CalculatorPredict ovulation and your fertile days across the next several cycles.Period CalculatorProject your next several periods and cycle phases from your history.Pregnancy Weight Gain CalculatorTrack pregnancy weight gain against IOM guidelines for your pre-pregnancy BMI.