Ground Contact Calculator — calculate ground contact for training and performance. Evidence-based formula and benchmarks.
Pace (min/mile) = total time (minutes) / distance (miles)
Speed (mph) = distance (miles) / total time (hours) = 60 / pace (min/mile)
Finish time = pace (min/mile) × distance (miles)
Common race distances: 5K = 3.107 mi, 10K = 6.214 mi, Half marathon = 13.109 mi, Marathon = 26.219 mi