14.66km/h, my running speed on 4km 16:22

Time equivalence by distance

1km	2km	5km	10km
04:06	08:11	20:28	40:55
15km	20km	Half Marathon	Marathon
1:01:23	1:21:50	1:26:19	2:52:39

Split by km

km	Time/km
1 km	04:06
2 km	08:11
3 km	12:17
4 km	16:22

Calculate your running speed

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