Treadmill Pace Converter
Convert treadmill speed (mph or km/h) to pace per mile and per kilometer, with optional incline-adjusted flat-road equivalents for effort comparison.
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Applications
Convert the speed shown on a treadmill console into running pace per mile or per kilometer, and see what flat-road pace matches your effort when running on an incline.
The Conversion
Pace per mile = 3600 / mph. Pace per km = 3600 / kph. kph = mph × 1.60934. The incline-adjusted equivalent flat-road pace multiplies the actual pace by (1 + 0.04 × incline%), modeling the ~4% increase in metabolic cost per 1% grade.
Fun Fact: Running on a 5% incline at 6 mph feels roughly equivalent to running 7.2 mph on a flat road — you cover the same 'effort' distance per minute without the wind resistance.
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