14.89km/h, my running speed on 4km 16:07

Time equivalence by distance

1km	2km	5km	10km
04:02	08:04	20:09	40:18
15km	20km	Half Marathon	Marathon
1:00:26	1:20:35	1:25:00	2:50:01

Split by km

km	Time/km
1 km	04:02
2 km	08:04
3 km	12:05
4 km	16:07

Calculate your running speed

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