Gym
Sep 27, 2025
Our Fitness Calculators
A suite of tools to help you on your fitness journey.
Over 5,000+ calculations performed this month.
Bulking Calorie Calculator
Calculate the daily calories you need to build muscle and gain weight effectively.
Calculate NowMacro Splitter
Determine the optimal macronutrient split of protein, carbs, and fats for your goals.
Calculate Now1-Rep Max Calculator
Estimate your one-rep max for any lift to guide your strength training progress.
Calculate NowProtein Intake Calculator
Optimize your daily protein intake for muscle repair and growth based on your specific goals.
Calculate NowCreatine Dosage Calculator
Calculate your optimal creatine dose and track your muscle saturation timeline with science-backed accuracy.
Calculate NowWater Intake Calculator
Calculate your optimal hydration targets for muscle fullness and recovery based on activity and climate.
Calculate NowIdeal Weight Calculator
Discover your science-based ideal weight and aesthetic target based on bone structure and frame size.
Calculate NowThe Science Behind Fitneura
At Fitneura, we believe that fitness is a science, not a guessing game. Our platform is built on clinically validated formulas to ensure your transformation is backed by data. Whether you are calculating your caloric needs using the Mifflin-St Jeor Equation widely considered the gold standard for accuracy or determining your strength potential with the Epley Formula, we provide the precision you need to succeed.
We specialize in supporting 'hardgainers' and fitness enthusiasts who have struggled with generic advice. By combining these high-accuracy tools with interactive challenges, we bridge the gap between information and action. Our mission is to provide the utility of a professional coaching suite for free, helping you track macros, muscle growth, and recovery in one centralized hub.
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Frequently Asked Questions
Use our Bulking Calorie Calculator. It factors in your BMR and activity level to find the exact 500-calorie surplus required for healthy muscle gain.
Yes. All 20+ tools on Fitneura are 100% free. Our goal is to provide accessible, science-based resources for the fitness community.
For optimal muscle synthesis, we recommend 1.8g to 2.2g of protein per kilogram of body weight. You can get a personalized breakdown using our Protein Intake Calculator.
Absolutely. Once you use any of our calculators, a "Download PDF" button will appear, giving you a custom-tailored guide or meal plan based on your results.