Running Speed Calculator
Calculate your average running or walking speed in km/h and mph from distance and time.
Enter your values and click Calculate
How It Works
Speed in kilometres per hour is calculated by dividing the distance in kilometres by the time converted from minutes to hours (time in minutes ÷ 60). For example, 10 km in 45 minutes gives 10 ÷ (45 ÷ 60) = 10 ÷ 0.75 = 13.33 km/h. Speed in miles per hour is then derived by multiplying the km/h result by the conversion factor 0.621371, since one kilometre equals exactly 0.621371 miles. Both outputs are rounded to two decimal places for readability. Enter fractional minutes — such as 65.5 for one hour, five minutes, and thirty seconds — for precise results across any distance or effort. The calculator accepts any positive distance in kilometres and any positive time in minutes, making it equally useful for short sprints, race efforts, and long training runs.