Health & Fitness Calculators
Take control of your health and fitness journey with our comprehensive suite of science-based calculators. From body composition analysis to nutrition planning, pregnancy tracking to fitness metrics—we've got you covered with accurate, easy-to-use tools backed by medical and sports science research.
⚖️ Body Composition & Weight
BMI Calculator
Calculate your Body Mass Index and understand where you fall on the health spectrum from underweight to obese
BMI Prime Calculator
Advanced BMI metric that shows how close you are to the upper limit of normal BMI range
Body Fat Calculator
Estimate your body fat percentage using proven measurement methods to track fitness progress
Army Body Fat Calculator
Calculate body fat percentage using the U.S. Army's official tape test method for fitness standards
Lean Body Mass Calculator
Determine your lean muscle mass to optimize training and nutrition strategies
Ideal Weight Calculator
Find your optimal weight range based on multiple scientific formulas and your unique body frame
Body Type Calculator
Discover your somatotype (ectomorph, mesomorph, or endomorph) to personalize your fitness approach
Body Water Percentage Calculator
Calculate your total body water content and ensure proper hydration for optimal health
Body Surface Area Calculator
Medical-grade BSA calculation used for medication dosing and health assessments
🔥 Calories & Metabolism
Calorie Calculator
Calculate your daily calorie needs for weight loss, maintenance, or muscle gain based on your lifestyle
BMR Calculator
Find your Basal Metabolic Rate—the calories your body burns at rest just to stay alive
TDEE Calculator
Calculate your Total Daily Energy Expenditure to accurately plan your nutrition strategy
Calories Burned Calculator
Track calories burned during exercise and daily activities across 50+ different activities
🥗 Nutrition & Macros
Macro Calculator
Calculate your optimal protein, carbs, and fat intake for your specific fitness goals
Protein Calculator
Determine your daily protein requirements for muscle building, weight loss, or general health
Carbohydrate Calculator
Calculate your ideal carb intake for energy, performance, and body composition goals
Fat Intake Calculator
Find your optimal daily fat consumption for hormonal health and energy balance
Water Intake Calculator
Calculate your personalized daily water needs based on weight, activity, and climate
💪 Fitness & Training
One Rep Max Calculator
Estimate your 1RM strength and plan progressive overload training programs
Pace Calculator
Calculate running pace, finish times, and race splits for any distance
VO2 Max Calculator
Measure your cardiovascular fitness and aerobic capacity with scientific accuracy
Heart Rate Zones Calculator
Find your optimal training zones for fat burning, cardio, and peak performance
Target Heart Rate Calculator
Calculate your ideal heart rate ranges for safe and effective cardiovascular exercise
Sleep Calculator
Optimize your sleep schedule for better recovery and performance
🤰 Pregnancy & Fertility
Pregnancy Calculator
Track your pregnancy week by week with due date and trimester milestones
Due Date Calculator
Calculate your baby's estimated due date from conception or last menstrual period
Conception Calculator
Estimate when conception occurred based on your due date or pregnancy timeline
Ovulation Calculator
Predict your fertile window and optimize your chances of conception
Period Calculator
Track menstrual cycles and predict future periods for better planning
Pregnancy Weight Gain Calculator
Monitor healthy weight gain during pregnancy based on your pre-pregnancy BMI
🩺 Medical & Health Metrics
Blood Pressure Calculator
Interpret your blood pressure readings and understand your cardiovascular health status
Blood Type Calculator
Predict possible blood types for children based on parental genetics
Cholesterol Ratio Calculator
Calculate your cholesterol ratios to assess heart disease risk
GFR Calculator
Estimate glomerular filtration rate to assess kidney function and health
BAC Calculator
Estimate blood alcohol content and understand alcohol's effects on your body
Why Use Our Health & Fitness Calculators?
Science-Backed
All calculations use validated formulas from peer-reviewed medical and sports science research.
Personalized Results
Get tailored recommendations based on your unique body composition, goals, and lifestyle.
Comprehensive Data
Track multiple health metrics to get a complete picture of your wellness journey.
100% Private
Your health data stays in your browser. We never store or share your personal information.