Health Tools

Track and plan health metrics: BMI/BMR, calories, hydration and more—simple interfaces with clinically familiar formulas.

23 tools available

Calculators 22

Child feeding calculator

Calculate recommended infant feeding amounts based on age and weight. Get personalized formula and milk intake guidelines for babies 0-24 months.

Calculators › Health & Fitness
Child calorie calculator

Calculate daily calorie needs for children and teens. Determine recommended calories, macros, and nutrition requirements based on age, activity level, and goals.

Calculators › Health & Fitness
Baby percentile

Calculate baby growth percentiles for length, weight, and head circumference using WHO standards. Track infant development from 0-36 months.

Calculators › Health & Fitness
Child BMI percentile

Calculate BMI percentile for children and teens aged 2-20 years. Determine weight category using CDC growth charts and BMI-for-age standards.

Calculators › Health & Fitness
WHO growth chart

Calculate child growth percentiles and Z-scores using WHO growth standards. Track height and weight development for children 0-19 years old.

Calculators › Health & Fitness
1RM calculator

Calculate your one rep max (1RM) using multiple formulas including Epley, Brzycki, and more. Get personalized training weights for strength, hypertrophy, and endurance. Free 1RM calculator for weightlifting.

Calculators › Health & Fitness
BMI calculator

Calculate your Body Mass Index (BMI) and determine your weight category and health risks. Free online BMI calculator with detailed health risk assessment.

Calculators › Health & Fitness
BMR calculator

Calculate your Basal Metabolic Rate (BMR) using multiple formulas including Mifflin-St Jeor, Harris-Benedict, and more. Get accurate TDEE calculations for weight management.

Calculators › Health & Fitness
BSA calculator

Calculate Body Surface Area (BSA) using multiple medical formulas including Du Bois, Mosteller, and Haycock. Free BSA calculator for accurate medical dosing and assessment.

Calculators › Health & Fitness
Body Fat calculator

Calculate your body fat percentage using the U.S. Navy Method. Get accurate body fat estimates with measurements of height, weight, neck, waist, and hip circumference.

Calculators › Health & Fitness
Body type calculator

Find your body shape and type for females. Free body type calculator determines if you're hourglass, pear, rectangle, inverted triangle, or triangle shape. Get personalized styling tips and waist-hip ratio analysis.

Calculators › Health & Fitness
Calorie calculator

Calculate your daily calorie needs for weight loss, weight gain, or maintenance. Free calorie calculator with BMR, TDEE, and macronutrient breakdown. Get personalized calorie goals based on your activity level and fitness goals.

Calculators › Health & Fitness
Healthy weight calculator

Calculate your healthy weight range based on BMI, age, and height. Free healthy weight calculator with visual weight status indicator and personalized recommendations.

Calculators › Health & Fitness
Ideal weight calculator

Calculate your ideal body weight using multiple scientific formulas including Robinson, Miller, Devine, and Hamwi. Free ideal weight calculator based on height, gender, and body frame.

Calculators › Health & Fitness
Lean body mass calculator

Calculate your lean body mass (LBM) using multiple formulas including Boer, James, and Hume. Free LBM calculator to determine muscle mass and body fat percentage for fitness tracking.

Calculators › Health & Fitness
Macro calculator

Calculate your daily macronutrient needs (protein, carbs, fats) based on your goals. Free macro calculator for weight loss, muscle gain, and maintenance with personalized recommendations.

Calculators › Health & Fitness
Ovulation calculator

Calculate your ovulation date and fertile window to increase chances of conception. Free ovulation calculator with personalized fertility calendar and cycle tracking.

Calculators › Health & Fitness
Pregnancy due date calculator

Calculate your pregnancy due date and track pregnancy milestones. Free pregnancy calculator using LMP, conception date, or ultrasound data with trimester tracking.

Calculators › Health & Fitness
Sleep cycle calculator

Calculate the best time to wake up or go to sleep based on sleep cycles. Free sleep calculator to help you wake up refreshed during light sleep phases.

Calculators › Health & Fitness
TDEE calculator

Calculate your Total Daily Energy Expenditure (TDEE) and daily calorie needs based on your activity level. Free online TDEE calculator with personalized recommendations.

Calculators › Health & Fitness
Target heart rate calculator

Calculate your target heart rate zones for different fitness goals. Free heart rate calculator with multiple formulas including Karvonen method. Get personalized training zones for fat burning, cardio, and peak performance.

Calculators › Health & Fitness
Water intake calculator

Calculate your daily water intake needs based on weight, activity level, and climate. Free online water consumption calculator with personalized hydration recommendations.

Calculators › Health & Fitness

Hardware Tools 1

Step Counter

Free online step counter & pedometer using accelerometer. Track steps, distance, calories burned, walking pace in real-time. No app installation needed.

Hardware Tools › Sensors