Running speed calculator
Know your distance and target finish time? Find the running or treadmill speed you need in km/h or mph, with pace conversions and finish times from 5K to marathon.
Your speed
6.2 mph
At this speed
| 5K | 30:00 |
|---|---|
| 10K | 1:00:00 |
| Half marathon | 2:06:35 |
| Marathon | 4:13:10 |
Times assume a constant speed.
How to calculate running speed
Speed is the distance covered per hour. Divide distance by time in hours to find average speed. You can choose km/h or mph for the main result.
For example, 5 km in 30 minutes gives a speed of 10.0 km/h, equivalent to 6.2 mph and a pace of 6:00 min/km.