Professional Sport Calculators
Tools for Athletes and Fitness Enthusiasts
Aerobic Performance
Calculators for assessing and developing aerobic performance: VO2max, lactate thresholds, performance index, normalized speed, and VLaMax. Determine your physiological parameters and create effective training zones for running, cycling, and triathlon.
VO2max
Advanced VO2max calculator with 9 testing methods
- • Speed and power tests
- • Lactate analysis
- • Training zone generation
Lactate Thresholds
Determine LT1 and LT2 thresholds from incremental test data
- • Dmax and fixed lactate methods
- • VLaMax (glycolytic power) calculation
- • Power, speed, and pace support
Performance Index
Evaluate your trail running performance accounting for terrain and conditions
- • Elevation gain and descent tracking
- • 12 surface types and 18 weather conditions
- • World record comparisons
Normalized Speed Calculator
Calculate theoretical running speeds at VO2max on different surfaces
- • Speeds for flat, 10% and 15% incline
- • Based on VO2max value
- • Energy-equivalent speed calculation
VLaMax Calculator
Calculate maximum lactate production rate from sprint test
- • Measure anaerobic glycolytic capacity
- • Sprint test protocol included
- • Absolute and relative VLaMax values
Body Metrics
Tools for analyzing body composition and metabolism: body fat percentage, basal metabolic rate (BMR), carbohydrate stores. Optimize nutrition, control weight, and improve body composition based on scientific methods and personal data.
BMR Calculator
Calculate your Basal Metabolic Rate using various formulas
- • Multiple calculation formulas
- • Activity level adjustments
- • Calorie recommendations
Body Fat Calculator
Estimate your body fat percentage using different methods
- • Navy method
- • BMI-based estimation
- • Visual comparison
Carb Depot
Calculate glycogen storage and carb loading protocol
- • Basic and detailed calculations
- • Carbohydrate loading protocols
- • Personalized recommendations
Training & Race Tools
Professional tools for training and race planning: training zone generator, race planner with GPS track analysis, zone converter between systems. Create optimal strategies to achieve your sports goals.
Race Planner
Plan and analyze your race with pace and nutrition strategy
- • GPS race route analysis
- • Pace optimization
- • Nutrition timing
Training Zones Generator
Generate training zones based on heart rate, power, speed, or lactate thresholds
- • 8 calculation methods (HR, power, speed, lactate)
- • 3/5/6 zone models support
- • Sport-specific zones (running/cycling)
Zones Converter
Convert between 3, 5, and 6 heart rate training zone models
- • Visual zone conversion
- • Draggable zone boundaries
- • Automatic HR calculation
Strength Tests
Comprehensive strength assessment for cyclic sports
- • 49 tests across 5 sports
- • Strength, endurance, power evaluation
- • Personalized recommendations
Fluid Loss Calculator
Calculate fluid loss during training based on intensity and conditions
- • Calculation by intensity zones
- • Temperature and humidity factors
- • Hydration recommendations