Explore our collection of health calculators organized by subcategory.
Calculate Body Mass Index (BMI) for men, women, and children.
Calculate your Basal Metabolic Rate (BMR) - the calories your body burns at rest.
Calculate your Total Daily Energy Expenditure (TDEE) - total calories burned per day.
Estimate body fat percentage using various methods (Navy method, BMI method).
Calculate daily calorie needs for weight loss, maintenance, or weight gain.
Calculate daily macronutrient needs (protein, carbs, fats) based on your goals.
Calculate your ideal body weight based on height, gender, and body frame.
Calculate body surface area (BSA) using various formulas (Mosteller, Du Bois, etc.).
Calculate lean body mass (LBM) and fat-free mass.
Calculate waist-to-hip ratio (WHR) to assess health risks.
Calculate running pace, speed, and time for various distances.
Convert steps to miles or kilometers based on stride length.
Calculate calories burned during various exercises and activities.
Calculate daily protein needs based on weight, activity level, and goals.
Calculate daily water intake needs based on weight, activity, and climate.
Calculate target heart rate zones, maximum heart rate, and resting heart rate.
Calculate pregnancy due date based on last menstrual period or conception date.
Determine your body type (Ectomorph, Mesomorph, Endomorph) from wrist circumference and height.
Estimate your VO2 max (maximum oxygen consumption) from resting and maximum heart rates and body weight.
Calculate your heart rate training zones for optimal workouts using the Karvonen method (accounts for resting heart rate).
Calculate your one-rep maximum (1RM) for strength training.
Calculate daily carbohydrate needs based on goals and activity level.
Calculate daily fat intake needs.
Calculate daily fiber needs based on age and gender.
Calculate ingredients needed for meal prep based on servings.
Calculate appropriate portion sizes based on your goals.
Assess blood pressure readings and categories.
Calculate optimal sleep times based on sleep cycles.
Calculate daily vitamin and mineral needs.
Calculate medication dosage based on weight and concentration. (Medical disclaimer required)
Calculate ovulation dates and fertile window.
Calculate current pregnancy week and trimester.
Track baby's growth during pregnancy.
Calculate recommended weight gain during pregnancy based on pre-pregnancy BMI and gestational age.
Calculate feeding schedule and milk intake for breastfeeding based on baby age, weight, and feedings per day.