Health tool
Pace Calculator
Convert a run into pace and speed, with projections for common race distances using a realistic fatigue-adjusted model.
Distance and finish time
Pace per mile
8:03
Pace per kilometer5:00
Speed7.46 mph / 12.00 km/h
Projected 10K52:07
Projected half / marathon1:55:00 / 3:59:47
Pace projections are estimates
The calculator uses your entered distance and time to estimate pace per mile and kilometer. Longer-race projections use a standard exponent to account for endurance fade.
Terrain, elevation, weather, training, and race strategy can move actual results substantially.
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