💪 Health & Fitness Calculators
Tools for healthy living and effective exercise
Health & Fitness Tools
BMR & Calorie Calculator
Calculate basal metabolic rate (BMR) and required calories. Supports Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas.
BMI Calculator
Calculate Body Mass Index (BMI) with WHO classification. Includes healthy weight range, BMI Prime, and Ponderal Index.
Body Fat Calculator
Calculate body fat percentage using Navy Method or BMI Method. Includes fat mass, lean mass, category classification, and ideal ranges.
Lean Body Mass Calculator
Calculate lean body mass (muscle mass) from weight and body fat percentage. Useful for healthy body composition goals (2025)
Ideal Weight Calculator
Calculate ideal weight using Robinson, Miller, Devine, and Hamwi formulas. Compare 4 scientific formulas with BMI healthy range.
Calorie Calculator
Calculate goal-based calories, zigzag calorie cycling, and macronutrient distribution. Plan meals for weight loss or gain goals.
Daily Protein Calculator
Calculate recommended daily protein intake based on weight, activity level, and goals. Helps with meal planning (2025)
Heart Rate Calculator
Calculate recommended heart rate based on age and exercise goals.
Exercise Calorie Calculator
Calculate calories burned by exercise type, duration, and weight. Accurate calculation based on MET index (2025)
1RM Calculator
Calculate one-rep max from reps and weight. For bench press, squat, deadlift, etc. (2025)
Running Pace Calculator
Auto-calculate pace per km and average speed from target distance and time (2025)
Interval Timer
Exercise/rest repeat timer. Perfect for HIIT, Tabata, stretching. Sound alerts supported (2025)
Food vs Exercise Comparator
How long to run after eating a whole chicken? Calculate exercise time needed to burn food calories (2025)
Child Height Predictor
Predict adult height based on parents' height or current child height. Includes growth curve percentile analysis (2025)
Daily Water Intake Calculator
Calculate recommended daily water intake based on weight, activity level, and climate. Shows in cups, glasses, and liters (2025)
Daily Vitamin Calculator
Calculate recommended daily allowance (RDA) for 11 vitamins based on age, gender, and lifestyle (2025)
Sleep Cycle Calculator
Calculate optimal bedtime/wake time considering 90-minute sleep cycles. Recommends 4-6 cycles (2025)
Steps Calorie Calculator
Calculate calories burned and distance traveled from steps, weight, and stride. Track 10,000-step goal (2025)
Heat Index Calculator
Calculate feels-like temperature considering temperature, humidity, and wind speed. Includes heat index and wind chill (2025)
TDEE Calculator
Calculate Total Daily Energy Expenditure, goal-based calories, and macronutrient recommendations (2025)
FFMI Calculator
Calculate Fat-Free Mass Index to assess muscle mass level. Useful for determining natural muscle growth limits (2025)
BSA Calculator
Calculate Body Surface Area using 5 formulas (DuBois, Mosteller, etc.). Essential for drug dosage calculation (2025)
Daily Caffeine Calculator
Calculate total caffeine intake from beverages and check safety limits. Includes coffee, tea, energy drinks (2025)
Biorhythm Calculator
Calculate physical, emotional, and intellectual biorhythms. 23, 28, 33-day cycle analysis (2025)
Height Percentile Calculator
Calculate what percentile your height is in. Based on Korean average height data (2025)
Pants Size Calculator
Convert waist, hip, and inseam measurements to Korean, US, European, and Japanese sizes. Gender-specific size recommendations (2025)
Shoe Size Calculator
Convert foot length to Korean, US, European, Japanese, and Chinese shoe sizes. Men's and women's sizing supported (2025)
Expiry Date Calculator
Calculate expiration date and remaining days from manufacture date and shelf life. Shows freshness status and storage tips (2025)
Batting Average Calculator
Calculate batting average, OBP, slugging, and OPS from at-bats, hits, walks, etc. Includes performance analysis and improvement tips (2025)