Health & Fitness Calculators

Professional health and fitness calculators including BMI, calorie needs, body fat, pregnancy, and fitness tracking tools. Get accurate health metrics and personalized recommendations.

All Health Calculators

BMI Calculator

Popular

Calculate your Body Mass Index and determine your weight category.

Free Calculator

Calorie Calculator

Popular

Calculate daily calorie needs based on your activity level and goals.

Free Calculator

Calorie Deficit Calculator

Popular

Calculate precise calorie deficits for healthy weight loss with advanced BMR formulas and macronutrient planning.

Free Calculator

Body Fat Calculator

Popular

Calculate body fat percentage using various measurement methods.

Free Calculator

BMR Calculator

Calculate your Basal Metabolic Rate and daily calorie needs.

Free Calculator

Ideal Weight Calculator

Calculate your ideal weight based on height and body frame.

Free Calculator

Water Intake Calculator

Popular

Calculate personalized daily water intake needs with advanced environmental and health factors.

Free Calculator

Pregnancy Calculator

Popular

Calculate due date, pregnancy weeks, and important milestones.

Free Calculator

Due Date Calculator

Calculate pregnancy due date from conception or last period.

Free Calculator

Ovulation Calculator

Calculate ovulation dates and fertile window.

Free Calculator

Calories Burned Calculator

Popular

Calculate calories burned during various physical activities.

Free Calculator

Target Heart Rate Calculator

Calculate target heart rate zones for optimal exercise intensity.

Free Calculator

Steps to Miles Calculator

Popular

Professional steps to miles converter with real-time bidirectional conversion, 4 calculation methods, stride length analysis, calorie estimation, and comprehensive fitness tracking.

Free Calculator

Pregnancy Conception Calculator

Calculate conception date from due date or last period.

Free Calculator

Carbohydrate Calculator

Calculate daily carbohydrate needs for your diet and activity level.

Free Calculator

Lean Body Mass Calculator

Calculate lean body mass using various formulas.

Free Calculator

One Rep Max Calculator

Calculate your one repetition maximum for weightlifting.

Free Calculator

Protein Calculator

Calculate daily protein requirements for your goals.

Free Calculator

Fat Intake Calculator

Calculate optimal daily fat intake for your diet.

Free Calculator

TDEE Calculator

Popular

Calculate Total Daily Energy Expenditure.

Free Calculator

Period Calculator

Track and predict menstrual cycle dates.

Free Calculator

Macro Calculator

Popular

Calculate optimal macronutrient distribution for your goals.

Free Calculator

Pregnancy Weight Gain Calculator

Calculate recommended weight gain during pregnancy.

Free Calculator

Pace Calculator

Calculate running pace, speed, and time for races.

Free Calculator

Army Body Fat Calculator

Calculate body fat percentage using US Army standards.

Free Calculator

Weight Watcher Points Calculator

Calculate Weight Watchers SmartPoints for foods.

Free Calculator

Body Type Calculator

Determine your body type and frame size.

Free Calculator

Body Surface Area Calculator

Calculate body surface area using multiple formulas.

Free Calculator

BAC Calculator

Calculate Blood Alcohol Content and estimated sobriety time.

Free Calculator

Anorexic BMI Calculator

Calculate BMI with warnings for underweight categories.

Free Calculator

Overweight Calculator

Determine if weight is in healthy, overweight, or obese range.

Free Calculator

GFR Calculator

Calculate Glomerular Filtration Rate for kidney function assessment.

Free Calculator

Baby Percentile Calculator

Popular

Calculate baby growth percentiles using WHO standards. Track weight, length, and head circumference percentiles for babies 0-24 months with accurate WHO 2006 Child Growth Standards.

Free Calculator

Health & Fitness Tips

BMI Guidelines

  • • Underweight: BMI less than 18.5
  • • Normal weight: BMI 18.5-24.9
  • • Overweight: BMI 25-29.9
  • • Obese: BMI 30 or higher
  • • BMI may not be accurate for athletes
  • • Consider body composition, not just BMI

Fitness Recommendations

  • • 150 minutes moderate exercise per week
  • • 75 minutes vigorous exercise per week
  • • Strength training 2+ days per week
  • • Target heart rate: 50-85% of max
  • • Max heart rate ≈ 220 - your age
  • • Stay hydrated during workouts