Your Free Health & Fitness Calculator Hub
Quick, accurate, and easy-to-use calculators to help you track and improve your wellness journey
BMI Calculator
Calculate your Body Mass Index (BMI) instantly to understand your weight category and potential health risks.
Calorie Calculator
Discover your daily calorie needs based on age, gender, weight, height, and activity level.
Pregnancy Due Date Calculator
Calculate your estimated due date and track your pregnancy week by week with accurate predictions.
Ovulation Calculator
Predict your most fertile days and ovulation date for family planning and conception tracking.
Sleep Calculator
Optimize your sleep schedule based on 90-minute sleep cycles to wake up refreshed and energized.
Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method for a more accurate body composition picture.
Water Intake Calculator
Calculate your optimal daily water intake based on weight, activity level, and climate for better hydration.
Heart Rate Calculator
Determine your target heart rate zones for different types of exercise to maximize your workout effectiveness.
BMR Calculator
Calculate your Basal Metabolic Rate - the calories your body needs at rest for effective diet planning.
TDEE Calculator
Calculate your Total Daily Energy Expenditure - total calories burned each day including exercise.
Ideal Weight Calculator
Determine your healthy weight range based on height, gender, and body frame for personalized recommendations.
Protein Calculator
Calculate your daily protein requirements based on weight, activity level, and fitness goals.
Body Shape Calculator
Determine your body shape (apple, pear, hourglass) based on measurements for better clothing choices.
Waist to Height Ratio
Calculate your waist-to-height ratio, a better health risk indicator than BMI for abdominal fat assessment.
Body Frame Size
Determine your body frame size (small, medium, large) based on wrist circumference and height.
Why Choose Our Health Calculators?
✓ 100% Free
All our health calculators are completely free to use with no registration required.
✓ Scientifically Accurate
Based on proven medical formulas and WHO standards for reliable results.
✓ Privacy Protected
Your data stays private. We don't store or share any personal information.
✓ Mobile Friendly
Calculate on any device - desktop, tablet, or smartphone with ease.
✓ Instant Results
Get immediate calculations with detailed explanations and health recommendations.
✓ Regular Updates
Our calculators are continuously updated with the latest medical research.
How to Use Our Health Calculators
Using our health and fitness calculators is simple and straightforward. Each calculator is designed with user experience in mind, requiring just a few inputs to provide accurate results. Whether you're calculating your BMI by entering your weight and height, determining your daily calorie needs based on your lifestyle, or tracking your pregnancy milestones, our intuitive interface guides you through each step.
Simply click on the calculator you need, enter the required information, and receive instant results with personalized recommendations. All calculations are performed instantly in your browser, ensuring your privacy and data security. Our calculators are regularly updated to reflect the latest medical research and health guidelines.