Health & Fitness Calculators
Accurate health calculators for BMI, daily calories, basal metabolic rate (BMR), body fat percentage, pregnancy due dates, water intake, and fitness goals.
Intermittent Fasting Calculator
Track eating windows and fasting schedules for 16:8, 18:6, and 20:4 protocols....
Cycling Power to Weight (Watts/Kg) Calculator 7
Measure cycling climbing efficiency by dividing functional threshold power by weight....
Body Surface Area (BSA) Calculator 6
Calculate physiological BSA using Mosteller and DuBois clinical formulas....
Cycling Power to Weight (Watts/Kg) Calculator 5
Measure cycling climbing efficiency by dividing functional threshold power by weight....
One Rep Max (1RM) Calculator
Predict your maximal lift weight from sub-maximal repetitions using Brzycki equation....
Calories Burned Walking vs Running Calculator 6
Compare caloric expenditure per mile across walking and jogging....
DOT Physical BMI & Neck Size Apnea Calculator 3
Evaluate commercial driver sleep apnea screening risk factors....
Harris-Benedict Metabolic Rate Calculator 7
Compute classical basal metabolism for active weight management....
Calories Burned Walking vs Running Calculator 4
Compare caloric expenditure per mile across walking and jogging....
Caffeine Half-Life Calculator
Track remaining caffeine in bloodstream to prevent bedtime insomnia....
Body Surface Area (BSA) Calculator 2
Calculate physiological BSA using Mosteller and DuBois clinical formulas....
Creatinine Clearance (Cockcroft-Gault) Calculator 3
Estimate glomerular filtration rate and kidney medication filtration....
BMR Calculator (Basal Metabolic Rate)
Find the exact calories your body burns at complete rest using Mifflin-St Jeor....
Creatinine Clearance (Cockcroft-Gault) Calculator 6
Estimate glomerular filtration rate and kidney medication filtration....
Harris-Benedict Metabolic Rate Calculator 5
Compute classical basal metabolism for active weight management....
Military Body Fat Tape Calculator 6
Calculate DoD physical readiness tape test body fat compliance....
Child Height Predictor Calculator 7
Estimate adult height using the mid-parental Khamis-Roche statistical algorithm....
BMI Calculator
Calculate Body Mass Index and identify healthy weight ranges for adults....
Calories Burned Walking vs Running Calculator 5
Compare caloric expenditure per mile across walking and jogging....
Harris-Benedict Metabolic Rate Calculator 4
Compute classical basal metabolism for active weight management....
DOT Physical BMI & Neck Size Apnea Calculator 7
Evaluate commercial driver sleep apnea screening risk factors....
Child Height Predictor Calculator 5
Estimate adult height using the mid-parental Khamis-Roche statistical algorithm....
Blood Alcohol Content (BAC) Calculator
Estimate blood alcohol concentration based on beverage units and metabolism rate....
Pace Calculator (Running & Marathon)
Calculate required split times and min/mile or min/km pace for races....
VO2 Max Fitness Estimator 6
Estimate cardiorespiratory endurance using the 1.5-mile running test....
Ovulation & Fertility Calculator
Determine peak fertile windows and conception probability....
Child Height Predictor Calculator 2
Estimate adult height using the mid-parental Khamis-Roche statistical algorithm....
Body Surface Area (BSA) Calculator 7
Calculate physiological BSA using Mosteller and DuBois clinical formulas....
Baby Feeding & Formula Intake Calculator 4
Determine daily ounces of breast milk or formula based on infant body weight....
Cycling Power to Weight (Watts/Kg) Calculator 6
Measure cycling climbing efficiency by dividing functional threshold power by weight....
Katch-McArdle BMR Calculator 7
Calculate resting metabolic rate based purely on lean body tissue mass....
Mean Arterial Pressure (MAP) Calculator 3
Calculate average arterial perfusion pressure from systolic and diastolic numbers....
Child Height Predictor Calculator 6
Estimate adult height using the mid-parental Khamis-Roche statistical algorithm....
VO2 Max Fitness Estimator 3
Estimate cardiorespiratory endurance using the 1.5-mile running test....
Mean Arterial Pressure (MAP) Calculator 6
Calculate average arterial perfusion pressure from systolic and diastolic numbers....
Calories Burned Walking vs Running Calculator 7
Compare caloric expenditure per mile across walking and jogging....