Free Health & Fitness
Calculators
Science-backed tools to track your BMI, calories, macros, heart rate zones, and more. No sign-up required.
Calculator Categories
Featured Calculators
BMI Calculator
Calculate your Body Mass Index instantly with our free tool.
Use Calculator →Calorie Calculator
Find your Total Daily Energy Expenditure and calorie goals.
Use Calculator →Macro Calculator
Get your personalized protein, carb, and fat targets.
Use Calculator →One Rep Max Calculator
Estimate your one-rep max from any set of reps and weight.
Use Calculator →Sleep Calculator
Find the best bedtime and wake-up times for quality rest.
Use Calculator →Pace Calculator
Calculate running pace and predict your race finish times.
Use Calculator →Why Trust FitCalcPro?
Science-Backed Formulas
Every calculator uses peer-reviewed, clinically validated formulas used by healthcare professionals worldwide.
100% Private
All calculations happen in your browser. We never store, collect, or transmit your health data. Zero tracking.
Instant Results
Get accurate results in seconds. No sign-up, no email, no paywall. Free forever.
Calculadoras en Espanol
Tambien disponible en espanol con contenido completo.