Free Health & Fitness Calculators
Medical-grade health calculators by Dr. Joshua Cassinat MD. Get professional results for BMI, heart rate zones, VO2 max, calories, macros, and more.
Heart Rate Zone Calculators
Calculate your personalized heart rate training zones using various methods to optimize your workouts.
Training Calculators
Tools for race prediction, training paces, strength estimation, and altitude adjustments.
Clinical Assessment Tools
Tools for assessing health risks and clinical parameters.
Nutrition & Wellness Calculators
Tools for TDEE, macronutrients, hydration, and more to support your health goals.