Fitness Calculators
Choose a calculator below. All run in your browser — no account, no data sent.
BMI Calculator
Body Mass Index
BMR Calculator
Basal Metabolic Rate
TDEE Calculator
Total Daily Energy Expenditure
Calorie Calculator
Daily calorie needs
Macro Calculator
Protein, carbs, fat
Body Fat Calculator
Navy method estimate
Heart Rate Zones
Training zones
1RM Calculator
One-rep max
Protein Intake
Daily protein needs
Water Intake
Daily hydration
Calories Burned
Activity calories