Enter a pace or a speed in any field. The tool converts through min/km, then fills min/mi, km/h and mph together instantly.
speed(km/h) = 60 ÷ pace(min/km), so a 5 min/km pace equals 12 km/h.
Pace uses decimal minutes, so 5 min 30 s is typed as 5.5, not 5.30.
min/mi = min/km × 1.609344, since a mile is 1.609344 km long.