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.

100 Calculators
Health & Fitness 4,760

Body Surface Area (BSA) Calculator 5

Calculate physiological BSA using Mosteller and DuBois clinical formulas....

Calculate
Health & Fitness 4,737

Child Height Predictor Calculator 7

Estimate adult height using the mid-parental Khamis-Roche statistical algorithm....

Calculate
Health & Fitness 4,736

Calories Burned Walking vs Running Calculator 4

Compare caloric expenditure per mile across walking and jogging....

Calculate
Health & Fitness 4,650

Blood Alcohol Content (BAC) Calculator

Estimate blood alcohol concentration based on beverage units and metabolism rate....

Calculate
Health & Fitness 4,624

Mean Arterial Pressure (MAP) Calculator 3

Calculate average arterial perfusion pressure from systolic and diastolic numbers....

Calculate
Health & Fitness 4,476

Harris-Benedict Metabolic Rate Calculator 3

Compute classical basal metabolism for active weight management....

Calculate
Health & Fitness 4,460

Harris-Benedict Metabolic Rate Calculator 2

Compute classical basal metabolism for active weight management....

Calculate
Health & Fitness 4,379

Cycling Power to Weight (Watts/Kg) Calculator 7

Measure cycling climbing efficiency by dividing functional threshold power by weight....

Calculate
Health & Fitness 4,356

Wilks Score Strength Calculator 3

Compare powerlifting strength across different body weight classes....

Calculate
Health & Fitness 4,265

Macro Nutrient Calculator

Determine optimal protein, carbohydrate, and fat gram ratios for your fitness goals....

Calculate
Health & Fitness 4,230

Target Heart Rate Karvonen Formula Calculator 6

Calculate precise aerobic heart zones using heart rate reserve (HRR)....

Calculate
Health & Fitness 4,215

BMR Calculator (Basal Metabolic Rate)

Find the exact calories your body burns at complete rest using Mifflin-St Jeor....

Calculate
Health & Fitness 4,210

Military Body Fat Tape Calculator 2

Calculate DoD physical readiness tape test body fat compliance....

Calculate
Health & Fitness 4,180

Katch-McArdle BMR Calculator 5

Calculate resting metabolic rate based purely on lean body tissue mass....

Calculate
Health & Fitness 4,147

Body Surface Area (BSA) Calculator 6

Calculate physiological BSA using Mosteller and DuBois clinical formulas....

Calculate
Health & Fitness 4,079

DOT Physical BMI & Neck Size Apnea Calculator 5

Evaluate commercial driver sleep apnea screening risk factors....

Calculate
Health & Fitness 4,047

Military Body Fat Tape Calculator 7

Calculate DoD physical readiness tape test body fat compliance....

Calculate
Health & Fitness 3,926

Child Height Predictor Calculator 4

Estimate adult height using the mid-parental Khamis-Roche statistical algorithm....

Calculate
Health & Fitness 3,737

Mean Arterial Pressure (MAP) Calculator 6

Calculate average arterial perfusion pressure from systolic and diastolic numbers....

Calculate
Health & Fitness 3,681

Cycling Power to Weight (Watts/Kg) Calculator 6

Measure cycling climbing efficiency by dividing functional threshold power by weight....

Calculate
Health & Fitness 3,622

Katch-McArdle BMR Calculator 6

Calculate resting metabolic rate based purely on lean body tissue mass....

Calculate
Health & Fitness 3,518

Pregnancy Weight Gain Guideline Calculator 6

Track recommended weekly maternal weight gain ranges based on pre-pregnancy BMI....

Calculate
Health & Fitness 3,493

Harris-Benedict Metabolic Rate Calculator 5

Compute classical basal metabolism for active weight management....

Calculate
Health & Fitness 3,376

Cycling Power to Weight (Watts/Kg) Calculator 5

Measure cycling climbing efficiency by dividing functional threshold power by weight....

Calculate
Health & Fitness 3,281

DOT Physical BMI & Neck Size Apnea Calculator 3

Evaluate commercial driver sleep apnea screening risk factors....

Calculate
Health & Fitness 3,233

Baby Feeding & Formula Intake Calculator 2

Determine daily ounces of breast milk or formula based on infant body weight....

Calculate
Health & Fitness 3,034

Military Body Fat Tape Calculator 5

Calculate DoD physical readiness tape test body fat compliance....

Calculate
Health & Fitness 3,025

Pregnancy Weight Gain Guideline Calculator 4

Track recommended weekly maternal weight gain ranges based on pre-pregnancy BMI....

Calculate
Health & Fitness 3,001

Katch-McArdle BMR Calculator 7

Calculate resting metabolic rate based purely on lean body tissue mass....

Calculate
Health & Fitness 2,978

VO2 Max Fitness Estimator 5

Estimate cardiorespiratory endurance using the 1.5-mile running test....

Calculate
Health & Fitness 2,880

Target Heart Rate Karvonen Formula Calculator 2

Calculate precise aerobic heart zones using heart rate reserve (HRR)....

Calculate
Health & Fitness 2,838

Pace Calculator (Running & Marathon)

Calculate required split times and min/mile or min/km pace for races....

Calculate
Health & Fitness 2,756

BMI Calculator

Calculate Body Mass Index and identify healthy weight ranges for adults....

Calculate
Health & Fitness 2,727

Body Surface Area (BSA) Calculator 7

Calculate physiological BSA using Mosteller and DuBois clinical formulas....

Calculate
Health & Fitness 2,634

Pregnancy Weight Gain Guideline Calculator 2

Track recommended weekly maternal weight gain ranges based on pre-pregnancy BMI....

Calculate
Health & Fitness 2,600

Calorie Calculator

Determine daily caloric intake required for weight loss, maintenance, or muscle gain....

Calculate