Health & Fitness Calculators
Free health and fitness calculators for BMI, BMR, TDEE, calories, macros, protein, hydration, pregnancy dates, running pace, and heart-rate zones.
EXPLORE TOOLS
Choose a calculator
Pick a tool below and get an instant result. No account or signup required.
BMI Calculator
Calculate your body mass index
Calorie Calculator
Find your daily calorie needs
Body Fat Calculator
Estimate your body fat percentage
BMR Calculator
Calculate your Basal Metabolic Rate from age, height, weight, and sex
TDEE Calculator
Estimate Total Daily Energy Expenditure from BMR and activity
Ideal Weight Calculator
Estimate ideal body weight from height
Macro Calculator
Calculate daily protein, carbohydrate, and fat targets
Protein Calculator
Estimate daily protein intake from body weight and activity
Calorie Deficit Calculator
Estimate a daily calorie deficit for a desired weight-loss rate
Water Intake Calculator
Estimate daily water intake from body weight and activity
Pregnancy Due Date Calculator
Estimate a pregnancy due date from the last menstrual period or conception date
Running Pace Calculator
Calculate running pace, speed, and finish time
Heart Rate Zone Calculator
Calculate five heart-rate training zones
USEFUL HEALTH & FITNESS TOOLS
Simple numbers for a better understanding of your health.
Use these tools for general information about body measurements, calorie needs, and body composition. Results are estimates and should not replace professional medical advice.