Calculate your Body Mass Index with advanced features including age and gender adjustments for maximum accuracy.
Find your Total Daily Energy Expenditure with precise calorie targets for weight loss, maintenance, or muscle gain.
Accurate body fat percentage using the Navy Method with visual charts and health assessments.
Get personalized macronutrient ratios for any diet style - from keto to vegan, Mediterranean to high-protein.
Precision protein requirements based on your lean body mass, activity level, and specific goals.
Smart hydration recommendations based on your work conditions, climate, activity level, and special circumstances.
Find your optimal weight range using multiple proven formulas with frame size and demographic adjustments.
Calculate your maximum lift potential with training percentages and strength level assessments for better programming.
Calculate calories burned during any exercise or activity with MET values and body composition considerations.
Dr. Ben Bikman's quick assessment method to evaluate your metabolic health and insulin sensitivity.
Our calculators use advanced formulas and body composition analysis for maximum accuracy, going beyond basic weight-based calculations.
No hidden fees, no premium tiers, no email required. All our tools are 100% free forever because we believe everyone deserves access to health tools.
Perfect experience on any device. All calculators are fully responsive and work seamlessly on phones, tablets, and desktops.
Built on research from leading experts like Dr. Ben Bikman and Dr. Dominic D'Agostino, with proper medical disclaimers and evidence-based approaches.
Get your personalized recommendations immediately with detailed explanations and actionable next steps for your fitness journey.
Clean, modern interface that's easy on the eyes and intuitive to use. Professional quality that exceeds expectations.