Professional-grade fitness calculators designed to help you achieve your health and training goals. All tools are free, scientifically-based, and require no registration.
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Our top-rated calculators used by thousands of fitness enthusiasts daily
Calculate your body fat percentage using multiple proven methods including Navy, YMCA, and 3-point skinfold measurements.
Calculate your one-rep maximum using proven formulas like Brzycki, Epley, and Lombardi with training percentage recommendations.
Estimate calories burned during 100+ exercises and activities using METs-based calculations tailored to your body weight and duration.
Complete collection of professional fitness calculators and analyzers
Calculate your body fat percentage using multiple proven methods including Navy, YMCA, and 3-point skinfold measurements.
Calculate your one-rep maximum using proven formulas like Brzycki, Epley, and Lombardi with training percentage recommendations.
Estimate calories burned during 100+ exercises and activities using METs-based calculations tailored to your body weight and duration.
Calculate BMI with health category classifications, body frame size analysis, and ideal weight ranges for comprehensive health assessment.
Create custom workout schedules based on training frequency with optimal muscle group rotation and recovery time management.
Calculate optimal protein, carbohydrates, and fat intake for your fitness goals with meal timing and nutrient density guidance.
Compare your lifts to established strength standards by age, weight, and experience level with progress tracking recommendations.
Calculate optimal rest periods between workouts based on training intensity, experience level, and targeted muscle groups.
Calculate training heart rate zones for optimal fat burning and cardiovascular fitness using age-based formulas and Karvonen method.
Track circumference measurements and body composition changes with progress visualization and milestone celebration features.
Calculate training volume (sets × reps × weight) for strength gains with weekly and monthly progression tracking capabilities.
Evaluate flexibility and mobility in key areas with personalized stretching routine recommendations and improvement tracking.
Professional-grade calculators trusted by fitness enthusiasts worldwide
All calculations use proven formulas and methodologies from sports science research and fitness industry standards.
All tools are 100% free with no hidden charges, registration requirements, or premium subscriptions.
Your personal data and calculations stay private. We don't store your information or share it with anyone.
Perfect user experience on all devices - desktop, tablet, or smartphone. Calculate anywhere, anytime.
Get immediate, accurate calculations without delays, loading screens, or complicated processes.
Each tool includes comprehensive guides, explanations, and tips to enhance your fitness knowledge.
Common questions about our fitness tools and calculators
Yes, absolutely! All our fitness tools are completely free to use with no hidden charges, registration requirements, or premium subscriptions. We believe fitness tools should be accessible to everyone.
Our tools use scientifically validated formulas widely accepted in the fitness industry. While individual variations exist, our calculators provide highly reliable estimates suitable for fitness planning and tracking.
No account creation is required. Simply visit any tool, enter your information, and get instant results. We prioritize ease of use and privacy protection.
Yes! All our tools are fully optimized for mobile devices. Whether you're using a smartphone, tablet, or desktop computer, you'll get the same great experience.
Join thousands of fitness enthusiasts who use our professional tools daily to track progress, plan workouts, and achieve their goals faster.