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RUNNERS LAB

Treadmill and cadence calculators

Belt pace and speed, session board and chart, incline GAP, treadmill intervals, cadence, stride, and steps.

Last reviewed 25 August 2026

Treadmill tools start from the console: belt speed in km/h or mph, session time, and deck incline. Belt pace is the inverse of that speed. Distance is speed times time. Session charts answer how long a kilometre takes and how far you go in 20, 30, 45, or 60 minutes.

Incline uses the same Minetti 2002 energy-cost model as grade-adjusted pace. The classic 1% treadmill grade is a published outdoor-matching note from Jones and Doust (1996), not a second formula. Interval pages use work speed and work duration the way treadmill programs are set.

Cadence, stride length, and steps are one identity: speed equals cadence times stride. There is no universal 180 spm target. Height-based stride guesses are not invented here. Road pace converters and outdoor GAP stay in Pace and Performance.