Health & Fitness Calculators

Track your physical well-being, pregnancy milestones, steps progress, and sobriety recovery journeys.

A1C to Blood Sugar Calculator

Convert your Hemoglobin A1C percentage to Estimated Average Glucose (eAG) in mg/dL and mmol/L.

Air Force Physical Test Calculator

Calculate your score for the Air Force Physical Fitness Assessment (PFA) including the 1.5-mile run, push-ups, and sit-ups.

Alcohol Units Calculator

Calculate the number of UK alcohol units, US Standard Drinks, and total calories in your beverage.

Anorexic BMI Calculator

Calculate BMI and assess eating disorder risk. Learn about anorexia nervosa classifications and get information about professional treatment resources.

Army Combat Fitness Test (ACFT) Calculator

Calculate your U.S. Army ACFT score across all six events to determine your physical readiness.

Army Physical Fitness Test (APFT) Calculator

Calculate your APFT score based on your age, gender, push-ups, sit-ups, and 2-mile run time.

Beep Test VO2 Estimate Calculator

Estimate your VO2 Max and total running distance based on your Beep Test / Yo-Yo Intermittent Recovery Test score.

Body Surface Area (BSA) Calculator

Calculate Body Surface Area using the standard Mosteller formula based on height and weight.

Bra Size Calculator

Calculate your estimated bra size using your underbust and bust measurements.

Calorie Deficit Calculator

Calculate the exact daily calorie deficit required to reach your weight loss goal within your desired timeframe.

Calories Burned During Exercise Calculator

Calculate how many calories you burned during your workout using MET values based on your body weight and exercise duration.

Carbohydrate Timing Calculator

Optimize your nutrition by calculating the ideal timing and quantity of carbohydrates around your workout window.

Daily Fat Intake Calculator

Determine how many grams of fat you should eat per day based on your calorie goals.

Daily Water Intake Needs Calculator

Calculate how much water you should drink daily based on your body weight, exercise habits, and climate.

Female Body Shape Calculator

Determine your female body shape (Hourglass, Pear, Apple) based on your measurements.

Harris-Benedict BMR Calculator

Calculate your Basal Metabolic Rate using the original Harris-Benedict equation.

Healthy Weight Range

Find your medically recommended weight range based on your height and BMI.

Heart Rate Training Zones Calculator

Calculate your optimal heart rate training zones (1 through 5) based on your age and resting heart rate using the Karvonen formula.

Heat Index Calculator

Calculate apparent temperature combining air temperature and humidity. Get heat stress risk levels and health warnings for extreme weather conditions.

How Long to Walk a Mile Calculator

Calculate exactly how many minutes it will take you to walk a mile based on your walking pace in mph.

How Many Steps in a Mile Calculator

Calculate how many steps it takes you to walk or run a mile, customized by your exact height and stride length.

Hydration Calculator

Calculate your personalized daily hydration requirements based on your body weight, activity level, and climate.

Ideal Weight Calculator

Calculate your Ideal Body Weight (IBW) based on height and gender using four distinct medical formulas.

Katch-McArdle BMR Calculator

Calculate your Basal Metabolic Rate using the Katch-McArdle formula, which accounts for your lean body mass.

Macro Nutrient Calculator (IIFYM)

Calculate your daily protein, fat, and carbohydrate targets based on your calorie goal and preferred macro split.

Marine Corps PFT Calculator

Calculate your official USMC Physical Fitness Test (PFT) score based on pull-ups, plank, and the 3-mile run.

Mifflin-St Jeor TDEE Calculator

Calculate your Total Daily Energy Expenditure (TDEE) using the highly accurate Mifflin-St Jeor equation.

Miles to Steps Calculator

Convert your miles walked or run into a total step count estimate based on your personal height and gender.

Military Body Fat Standard Calculator

Calculate your body fat percentage and check if you meet the maximum allowable standards for military service branches.

Navy Body Fat Percentage Calculator

Estimate your body fat percentage using the official U.S. Navy tape measure method.

Navy Physical Readiness Test (PRT) Calculator

Calculate your official U.S. Navy PRT score based on push-ups, forearm plank, and the 1.5-mile run.

One-Mile Run Pace Calculator

Calculate your one-mile running pace and speed based on your target or actual completion time.

One-Rep Max (1RM) Strength Calculator

Calculate your one-rep max (1RM) based on the weight you lifted and the number of repetitions completed.

Pregnancy Due Date Calculator

Estimate your pregnancy due date, conception date, and current gestational age based on your last menstrual period.

Protein Intake Calculator

Calculate your optimal daily protein target based on your body weight, activity level, and fitness goals.

Push-Up Fitness Test Calculator

Rate your upper body muscular endurance by comparing your push-up score against national ACSM norms based on your age and gender.

Sit-Up Fitness Test Calculator

Rate your core strength and endurance by comparing your 1-minute sit-up score against ACSM/YMCA national norms.

Sleep Cycle Calculator

Calculate the optimal time to go to bed to ensure you wake up between sleep cycles feeling refreshed.

Steps to Kilometers Calculator

Convert your daily step count into kilometers based on your average stride length.

VO2 Max Calculator

Estimate your VO2 Max, the ultimate measure of cardiovascular fitness, using your resting heart rate and age.

Waist-to-Height Ratio (WHtR) Calculator

Calculate your Waist-to-Height Ratio (WHtR), a more accurate predictor of cardiovascular disease and diabetes risk than BMI.

Weight Watchers Points Estimator

Estimate the Smart Points value of foods based on their nutritional label information.