Track Your Fitness.
Calculate With Confidence.
Free calculators for BMI, TDEE, BMR, macros, and more. Science-based formulas, instant results, zero data sent to servers.
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
What Makes SportyCalc Stand Out?
Research-Driven
Equations supported by scientific studies (e.g., Mifflin-St Jeor, Navy Body Fat, and more).
Fully Secure
All your personal health info stays right in your browser—no sharing ever.
Optimized for Mobile
Access it easily at the gym, while cooking, or on the go.
⚠️ Important Health Advisory: Our calculators provide general information and should not replace expert medical guidance. Please speak with a qualified healthcare professional prior to altering your nutrition or fitness habits.