Manish Kumar 
Zone 2 Heart Rate Calculator Calculate your optimal Zone 2 heart rate for maximum fat burning, aerobic base building, and metabolic efficiency. Based on Peter Attia’s research and exercise physiology science for sustainable cardio training. 🎂 Age Age affects maximum heart rate calculation accuracy 💓 Resting Heart Rate Measure first thing in the morning while … Read more
Training Stress Score (TSS) Calculator Calculate your Training Stress Score using scientifically validated methods to quantify training load, monitor fatigue, and optimize recovery planning ℹ️ Training Load Quantification Tool: TSS provides objective measurement of training stress by combining workout intensity and duration. This calculator uses research-validated formulas to help you monitor training load and plan … Read more
Cycling Power to Weight Calculator Calculate your power-to-weight ratio and determine your cycling performance category for climbing and overall performance ℹ️ Performance Analysis: Power-to-weight ratio (W/kg) is the key metric for climbing performance and overall cycling ability. This calculator uses research-based performance categories to assess your current level and provide training recommendations. ⚡ Power Output … Read more
Running Calorie Calculator Scientific running energy expenditure calculator with advanced MET analysis and terrain adjustments 🏃 Research-Based Accuracy: This calculator uses validated metabolic equations from exercise physiology research, including ACSM guidelines and peer-reviewed studies on running energy expenditure. ⚖️ Body Weight KG LBS Higher body weight increases caloric expenditure during running ⚙️ Calculation Method Duration … Read more
Rucking Calorie Calculator Calculate calories burned during rucking using the scientifically validated Pandolf Equation developed by the U.S. Army Military-Grade Calculation Tool: This calculator uses the Pandolf Equation validated by the U.S. Army Research Institute for accurate load carriage calorie estimates. 🌍 Unit System Metric (kg, km/h) Imperial (lb, mph) ⚖️ Body Weight Your body … Read more
AMDR Calculator Calculate your optimal macronutrient distribution using evidence-based AMDR guidelines for healthy nutrition planning and chronic disease prevention ℹ️ Evidence-Based Guidelines: AMDR (Acceptable Macronutrient Distribution Range) provides scientifically-backed recommendations established by the National Academy of Sciences for optimal carbohydrate, protein, and fat intake to ensure nutrient adequacy while reducing chronic disease risk. 🎂 Age … Read more
Target Heart Rate Zones Calculator Calculate your optimal target heart rate zones for fat loss, endurance training, and performance optimization Professional Training Tool: This calculator uses scientifically validated heart rate formulas to provide accurate training zones for optimal fat loss, endurance, and performance. 🎂 Age Age is the primary factor in maximum heart rate calculation … Read more
4-Site Skinfold Calculator: Durnin & Womersley Body Fat Assessment 📐 4-Site Skinfold Calculator Calculate your body fat percentage using the classic Durnin & Womersley (1974) 4-site skinfold method Professional Assessment Tool: This calculator uses the gold-standard Durnin & Womersley 4-site skinfold method validated by sports scientists and fitness professionals worldwide. 🎂 Age Age in years … Read more
🏃♂️ 1.5 Mile VO₂ Max Test Calculator Calculate your cardiovascular fitness using the scientifically validated 1.5-mile run test with gender-specific regression equations 🎂 Age Age in years (18-80 years old) ⚖️ Weight Units KG LBS ⚖️ Weight Your current body weight 👤 Gender Select GenderMaleFemale Required for gender-specific formula ⏱️ 1.5 Mile Run Time : … Read more