Running or cycling pace and speed, from distance and finish time.
Pace is time per unit distance (e.g. min/km), calculated as Time ÷ Distance; speed is distance per unit time (e.g. km/h), calculated as Distance ÷ Time — they're inverses of each other.
We take your pace in minutes per km and multiply it by each race's standard distance (5K, 10K, 21.0975 km half marathon, 42.195 km marathon), assuming you hold that exact pace for the whole race.
Yes — switch the distance unit to mi. Everything is converted to km internally first, then pace and speed are shown in km, mi, km/h and mph.