Health Calculators
Free health and fitness calculators for BMI, calories, body fat, and more.
Take control of your health with accurate, science-based health calculators. From BMI to calorie needs, our tools help you understand your body and make informed health decisions.
In this category
All calculators in this category
Adult BMI Calculator
Estimate adult body mass index from height and weight for a quick weight-status check.
BMI Calculator
Calculate your Body Mass Index (BMI) and find your weight category.
BMR Calculator
Estimate basal metabolic rate from age, sex, height, and body weight.
Body Fat Percentage Calculator
Estimate body fat percentage from standard body measurements and sex-specific formulas.
Calorie Calculator
Calculate your daily calorie needs based on your age, gender, weight, and activity level.
Cutting Calorie Calculator
Estimate daily calories for a fat-loss phase using BMR, activity level, and weight-management planning.
Daily Water Intake Calculator
Estimate a practical daily water target from body weight and exercise time.
Hydration Calculator
Estimate a practical daily water intake target from body weight and activity time.
Maintenance Calorie Calculator
Estimate maintenance calories from age, sex, body size, and activity level.
TDEE Calculator
Estimate total daily energy expenditure from age, sex, size, and activity level.
Water Intake Calculator
Estimate a daily water target from body weight and activity level.
Active Calorie Calculator
Estimate daily maintenance calories with this active calorie calculator based on age, weight, height, and activity level.
Adult Calorie Calculator
Estimate daily maintenance calories with this adult calorie calculator based on age, weight, height, and activity level.
Army Body Fat Calculator
Estimate body fat from circumference measurements using a practical tape-measure method.
Athlete Calorie Calculator
Estimate daily maintenance calories with this athlete calorie calculator based on age, weight, height, and activity level.
Body Fat Calculator
Estimate your body fat percentage using body measurements.
Bulking Calorie Calculator
Estimate daily calorie needs for a muscle-gain phase using body stats and activity level.
Cyclist Calorie Calculator
Estimate daily maintenance calories with this cyclist calorie calculator based on age, weight, height, and activity level.
Daily Calorie Needs Calculator
Estimate daily maintenance calories with this daily calorie needs calculator based on age, weight, height, and activity level.
Desk Job Calorie Calculator
Estimate daily maintenance calories with this desk job calorie calculator based on age, weight, height, and activity level.
Exercise Water Intake Calculator
Estimate a daily hydration target from body weight and exercise time.
Female BMR Calculator
Estimate female basal metabolic rate from age, weight, and height using a standard equation.
Female Calorie Calculator
Estimate daily maintenance calories with this female calorie calculator based on age, weight, height, and activity level.
Light Activity Calorie Calculator
Estimate daily maintenance calories with this light activity calorie calculator based on age, weight, height, and activity level.
Maintenance Calories Calculator
Estimate daily maintenance calories with this maintenance calories calculator based on age, weight, height, and activity level.
Male BMR Calculator
Estimate male basal metabolic rate from age, weight, and height using a standard equation.
Male Calorie Calculator
Estimate daily maintenance calories with this male calorie calculator based on age, weight, height, and activity level.
Men BMI Calculator
Calculate BMI for men from weight and height using the standard body mass index formula.
Mens Calorie Calculator
Estimate daily maintenance calories with this mens calorie calculator based on age, weight, height, and activity level.
Moderate Activity Calorie Calculator
Estimate daily maintenance calories with this moderate activity calorie calculator based on age, weight, height, and activity level.
Office Worker Calorie Calculator
Estimate daily maintenance calories with this office worker calorie calculator based on age, weight, height, and activity level.
Runner Calorie Calculator
Estimate daily maintenance calories with this runner calorie calculator based on age, weight, height, and activity level.
Sedentary Calorie Calculator
Estimate daily maintenance calories with this sedentary calorie calculator based on age, weight, height, and activity level.
Senior Calorie Calculator
Estimate daily maintenance calories with this senior calorie calculator based on age, weight, height, and activity level.
Shift Worker Calorie Calculator
Estimate daily maintenance calories with this shift worker calorie calculator based on age, weight, height, and activity level.
Strength Training Calorie Calculator
Estimate daily maintenance calories with this strength training calorie calculator based on age, weight, height, and activity level.
Very Active Calorie Calculator
Estimate daily maintenance calories with this very active calorie calculator based on age, weight, height, and activity level.
Womens Calorie Calculator
Estimate daily maintenance calories with this womens calorie calculator based on age, weight, height, and activity level.
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