Power, Speed, and StandardsBeginner
Cycling Performance Calculator
Estimate power output, compare standards, and get structured training context.
2 min
OpenPowerPerformanceStandards
Cycling Tools for Real Training Decisions
Search and filter calculators by intent, method, and complexity. Start with core metrics, then apply the outputs directly to your next training block.
performancezonesplanning
Featured Calculators
Most common starting points for cyclists.
20-min, 8-min, 5-min, RampBeginner
FTP Calculator
Calculate FTP from common test protocols and generate training zones.
2 min
OpenFTPThresholdTraining
Coggan Z1-Z7Beginner
Power Zone Calculator
Convert FTP into practical power-zone ranges for workouts and pacing.
2 min
OpenCogganZonesWorkouts
Max HR, Karvonen, LTHRIntermediate
Heart Rate Zone Calculator
Create personalized cycling heart-rate zones across multiple methods.
3 min
OpenHeart RateLTHRKarvonen
Showing 28 tools
Power, Speed, and StandardsBeginner
Cycling Performance Calculator
Estimate power output, compare standards, and get structured training context.
2 min
OpenPowerPerformanceStandards
20-min, 8-min, 5-min, RampBeginner
FTP Calculator
Calculate FTP from common test protocols and generate training zones.
2 min
OpenFTPThresholdTraining
Coggan Z1-Z7Beginner
Power Zone Calculator
Convert FTP into practical power-zone ranges for workouts and pacing.
2 min
OpenCogganZonesWorkouts
Max HR, Karvonen, LTHRIntermediate
Heart Rate Zone Calculator
Create personalized cycling heart-rate zones across multiple methods.
3 min
OpenHeart RateLTHRKarvonen
CP from Maximal EffortsAdvanced
Critical Power Calculator
Estimate Critical Power from maximal efforts and apply it to interval pacing decisions.
3 min
OpenCPThresholdPacing
LT1 and LT2 AnchorsIntermediate
Lactate Threshold Calculator
Estimate practical LT1/LT2 thresholds from adaptive power and heart-rate pathways.
3 min
OpenLactate ThresholdLT1LT2
Heart Rate, FTP, and LTHRBeginner
Zone 2 Calculator
Compare Zone 2 heart-rate and power methods, then validate the range with practical endurance cues.
2 min
OpenZone 2Aerobic BaseEndurance
VI Pacing QualityIntermediate
Variability Index Calculator
Calculate VI from NP and average power to quantify pacing smoothness and execution quality.
2 min
OpenVIPacingNP
W/kg ProfileBeginner
Power-to-Weight Calculator
Calculate watts per kilogram and benchmark climbing potential.
2 min
OpenW/kgClimbingBenchmarks
Aerobic CapacityIntermediate
VO2max Estimator
Estimate aerobic capacity and interpret expected training level.
3 min
OpenVO2maxFitnessCapacity
Cadence and SpeedIntermediate
Gear Ratio Calculator
Compare chainring/cassette combinations and optimize cadence choices.
3 min
OpenGearingCadenceSpeed
Duration and PaceBeginner
Cycling Time Calculator
Estimate ride duration from distance, speed, and terrain context.
2 min
OpenPacingTimePlanning
Calories by Time, Speed, or PowerBeginner
Cycling Calories Burned Calculator
Estimate cycling calories from ride basics or stronger power-based inputs with practical fueling context.
3 min
OpenCaloriesFuelingEnergy Cost
Activity-Equivalent StepsBeginner
Cycling to Steps Calculator
Convert rides into activity-equivalent steps using calories, distance, duration, or advanced cycling data.
2 min
OpenStepsActivityCalories
Indoor Calories by Effort, Resistance, or WattsBeginner
Recumbent Bike Calories Burned Calculator
Estimate indoor recumbent-bike calories from duration, body weight, effort, machine resistance, or average watts with careful confidence notes.
3 min
OpenRecumbent BikeCaloriesIndoor Cardio
Power by Speed, Wind, and GradientIntermediate
Cycling Watts Calculator
Estimate the cycling watts required for a target speed using gradient, wind, aerodynamics, rolling resistance, and drivetrain efficiency.
3 min
OpenWattsPhysicsPacing
Watts, Speed, Time, CaloriesAdvanced
Cycling Power & Speed Calculator
Model cycling watts, speed, ride time, calories, wind, grade, aerodynamics, rolling resistance, and drivetrain losses in one advanced calculator.
4 min
OpenPowerSpeedPhysics
Quick ConversionBeginner
FTP to W/kg Converter
Convert FTP watts to watts per kilogram and see your performance category.
1 min
OpenW/kgFTPConverter
Training Stress ScoreIntermediate
TSS Calculator
Calculate Training Stress Score from NP, duration, and FTP to quantify ride difficulty.
2 min
OpenTSSTraining LoadRecovery
Normalized PowerIntermediate
NP & IF Estimator
Estimate Normalized Power from average power and calculate Intensity Factor.
2 min
OpenNPIFVariability
Optimal PSI Front & RearBeginner
Bike Tire Pressure Calculator
Calculate personalized front/rear tire pressure for road, gravel, and MTB based on weight, width, surface, and setup.
2 min
OpenTire PressurePSISetup
Frame Size by BodyBeginner
Bike Size Calculator
Find your ideal frame size based on height, inseam, bike type, and riding style.
2 min
OpenBike SizeFrameFit
LeMond, Hamley, ModernBeginner
Saddle Height Calculator
Calculate optimal saddle height using multiple validated methods for road, gravel, and MTB.
2 min
OpenSaddle HeightFitComfort
Carbs, Fluid & SodiumBeginner
Cycling Fueling Calculator
Calculate personalized carb, fluid, and sodium targets with a practical fuel plan for any ride.
2 min
OpenNutritionFuelingHydration
Tire Power LossIntermediate
Rolling Resistance Calculator
Calculate power lost to rolling resistance and compare tire setups for speed gains.
2 min
OpenRolling ResistanceTiresWatts
Aerodynamic DragAdvanced
CdA Calculator
Estimate CdA from power/speed or position and see time-saving potential from aero improvements.
3 min
OpenCdAAerodynamicsDrag
Finish Time & PacingIntermediate
Cycling Race Predictor
Predict race finish time based on FTP, weight, terrain, and position with pacing strategy.
3 min
OpenRacePredictionPacing
CTL, ATL & TSBAdvanced
Training Load Calculator
Track fitness, fatigue, and form to optimize training progression and recovery timing.
3 min
OpenCTLATLTSB
Related Resources
Calculator Standards
Every tool includes assumptions, update stamps, and consistency notes to keep outputs practical.
About Our Approach