14.35km/h, my running speed on 4km 16:43

Time equivalence by distance

1km	2km	5km	10km
04:11	08:22	20:54	41:48
15km	20km	Half Marathon	Marathon
1:02:41	1:23:35	1:28:10	2:56:20

Split by km

km	Time/km
1 km	04:11
2 km	08:22
3 km	12:32
4 km	16:43

Calculate your running speed

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