Fitness & Health Calculators
Professional fitness and health calculators for BMI, body fat, calories, macros, pregnancy, and more. Get accurate health metrics with expert formulas and evidence-based calculations.
31 calculators available•0 coming soon•Updated August 2025
Body Composition
Calculate BMI, body fat percentage, and body composition metrics
BMI Calculator
Body Fat Calculator
Healthy Weight Calculator
Ideal Weight Calculator
Lean Body Mass Calculator
Body Surface Area Calculator
Army Body Fat Calculator
Body Type Calculator
Nutrition & Macros
Calculate daily calories, macronutrients, and nutritional needs
Calorie Calculator
BMR Calculator
TDEE Calculator
Macro Calculator
Protein Calculator
Carbohydrate Calculator
Fat Intake Calculator
Calories Burned Calculator
Fitness Performance
Track workout performance, pace, and fitness metrics
One Rep Max Calculator
Pace Calculator
Target Heart Rate Calculator
Weight Watcher Points Calculator
Women's Health
Pregnancy, conception, and reproductive health calculators
Pregnancy Calculator
Pregnancy Conception Calculator
Due Date Calculator
Pregnancy Weight Gain Calculator
Conception Calculator
Ovulation Calculator
Period Calculator
Health Metrics
Calculate various health and medical metrics
GFR Calculator
BAC Calculator
Anorexic BMI Calculator
Overweight Calculator
Why Choose Our Fitness Calculators?
Evidence-Based
Formulas backed by scientific research and medical studies
Personalized
Results tailored to your age, gender, activity level, and goals
Comprehensive
Detailed breakdowns with actionable insights and recommendations
Professional Grade
Calculations used by fitness professionals and healthcare providers