Cycling guide
Power is precise. Interpretation is not automatic.
Watts make the work visible, but FTP settings, fatigue and conditions still shape what the ride means.
Start with the measurement you need, then follow the evidence behind it.
Start here
One question at a time.
01CalculatorEstimate FTP from a recent effortCompare common estimation methods and see how duration changes the result.02Metric guideUnderstand NP, IF, TSS and FTPLearn what each power metric describes and where inherited assumptions create false precision.03CalculatorModel short and long training loadExplore ATL, CTL and TSB without treating the chart as an injury alarm.04GuideBuild heart-rate zones for cross-checkingPair external output with an internal response and choose an anchor that fits the sport.