About this tool
The Treadmill Pace Converter turns a treadmill's speed into your running pace and shows the same effort in both mile and kilometre terms, plus an incline-adjusted equivalent. It runs entirely in your browser with nothing uploaded.
Pace is 60 ÷ speed: at 6 mph that is 60 ÷ 6 = 10:00 per mile. Speed is converted between units with 1 mph = 1.60934 kph, so a per-mile and per-km pace are always shown together. Running on an incline is harder than flat ground, so the equivalent flat speed is approximated as speed × (1 + 0.03 × grade%), and the tool reports the flat pace that roughly matches that effort. Incline is optional — leave it at 0 for a flat run.
Use it to plan treadmill sessions to an outdoor pace goal, or to compare machines that read in different units. The incline adjustment is a rough rule of thumb, not a lab measurement. This is general fitness information, not medical advice.