Health & fitness calculators

Body measurements, nutrition, training, sports stats and pregnancy dates. 29 calculators.

• A1C calculatorA1C to estimated average glucose and back.
• Alcohol units calculatorStandard drinks and units in a drink.
• Baseball stats calculatorAVG, OBP, SLG, OPS, ERA and WHIP.
• Blood pressure category calculatorCategory of a blood pressure reading.
• BMI calculatorBody mass index, category and healthy weight range.
• BMR calculatorCalories burned at rest, by three formulas.
• Body fat calculatorBody fat percentage from tape measurements (Navy method).
• Caffeine calculatorCaffeine remaining after hours, by half-life.
• Calorie calculatorDaily calories (TDEE) to maintain, lose or gain weight.
• Calories burned calculatorCalories burned by activity, weight and time.
• Conception calculatorLikely conception date from a due date.
• Cycling power calculatorW/kg and power zones from FTP.
• Due date calculatorDue date, weeks pregnant and trimester dates.
• Ideal weight calculatorIdeal weight by four formulas and the healthy BMI range.
• Lean body mass calculatorLean body mass by three formulas.
• Macro calculatorGrams of protein, carbs and fat for your calories.
• One rep max calculatorEstimated 1RM and training percentages.
• Ovulation and period calculatorNext periods, ovulation and fertile windows.
• Pace calculatorPace from time and distance, or finish time from pace.
• Pack-year calculatorSmoking pack-years and screening eligibility.
• Pregnancy weight gain calculatorRecommended pregnancy weight gain by pre-pregnancy BMI.
• Protein calculatorDaily protein in grams by weight and activity.
• Race time predictorPredicted race times from a recent result.
• Steps to miles calculatorSteps to miles or km, by stride or height.
• Swim pace calculatorSwim pace per 100, or finish time.
• Target heart rate calculatorMax heart rate and training zones by age.
• VO2 max calculatorVO2 max from a 12-minute run or heart rates.
• Waist-to-hip ratio calculatorWaist-to-hip and waist-to-height ratios.
• Water intake calculatorDaily fluid needs with exercise and heat.