Pace is the most common way runners and walkers think about effort. You can compute pace per kilometer or per mile, then fine tune it with small second based adjustments to explore realistic plans for workouts and races.
Type the distance you plan to cover and choose kilometers or miles.
Type finish time using hours, minutes, and seconds.
Press Calculate to see pace per km and per mile, speed in both unit systems, and total time.
Use plus or minus to adjust pace by seconds. Save scenarios to compare and export a two column PDF report.
Pace is time per distance. It is usually written as minutes per kilometer (min/km) or minutes per mile (min/mi). If you prefer speed (km/h or mi/h), this tool shows both. Pace is often easier to control during a run because it maps directly to how long each split should take.
Internally, this calculator converts miles to kilometers (and vice versa) using 1 mile = 1.60934 km, then computes pace per km and pace per mile. After you calculate once, the pace adjust buttons change pace by seconds and recompute total time and speed automatically.
Wikipedia: Running | Wikipedia: Marathon
Pace is the time needed to cover a unit of distance, such as minutes per kilometer or minutes per mile.
Speed is distance per time (km/h). Pace is time per distance (min/km). They describe the same performance from different angles.
They add or subtract a few seconds from pace per km or pace per mile, then recalculate total time and speed using the same distance.
No. It assumes constant pace. Use it as a planning baseline and adjust for real world conditions.
These results are for reference only and were developed for educational and testing purposes. Always validate with real training data and conditions.
