Health & Fitness Calculators
Evidence-based health calculations for daily caloric maintenance, macro splits, target body composition, and fitness metrics. Browse all 10 calculators below with automatic unit conversions.
TDEE Calculator (Total Daily Energy Expenditure)
Calculate Total Daily Energy Expenditure using Mifflin-St Jeor formula and activity multipliers.
Macro Calculator
Calculate daily protein, carbohydrate, and fat targets based on caloric goals and macronutrient splits.
Protein Calculator
Calculate daily protein requirements tailored to body weight, activity level, and athletic goals.
BMR Calculator (Basal Metabolic Rate)
Calculate basal metabolic rate using Mifflin-St Jeor and revised Harris-Benedict formulas.
Child Adult Height Predictor
Predict child adult height using the clinical mid-parental method (Tanner formula).
BMI Calculator for Women
Calculate BMI for adult women with female-specific body composition context and healthy weight ranges.
Calorie Deficit Calculator
Calculate target caloric intake and fat loss timeline based on daily deficit and TDEE.
Pregnancy Due Date Calculator
Calculate pregnancy due date, estimated conception, and gestational progress using Naegele rule.
Ovulation & Fertile Window Calculator
Calculate ovulation cycle day, fertile window, and future period dates from cycle length.
Workout Calorie Burn Calculator
Calculate calories burned during exercise using scientific MET (Metabolic Equivalent of Task) values.