6:40 per km pace

A pace of 6:40/km is 10:44/mi, or 9.0 km/h (5.6 mph). At that pace you finish a 5K in 33:20, a 10K in 1:06:40, a half marathon in 2:20:39 and a marathon in 4:41:18.

Try it at another distance

10K finish times around your target, in 5 seconds steps
Change	Time	Pace
−0:20	1:03:20	6:2010:12
−0:15	1:04:10	6:2510:20
−0:10	1:05:00	6:3010:28
−0:05	1:05:50	6:3510:36
Your target Finish time Pace /km
+0:05	1:07:30	6:4510:52
+0:10	1:08:20	6:5011:00
+0:15	1:09:10	6:5511:08
+0:20	1:10:00	7:0011:16

min/kmmin/mikm/hmph

Arrow keys nudge the value. Hold Shift for bigger steps.

Finish times at 6:40 per km

Finish time at this pace for each distance
Distance	Finish time
1K	6:40
1 mile	10:44
5K	33:20
10K	1:06:40
10 miles	1:47:17
Half marathon	2:20:39
Marathon	4:41:18
50K	5:33:20

Splits

Negative splitEven pace all the way

Splits per km
km	Split	Elapsed
1	6:40	6:40
2	6:40	13:20
3	6:40	20:00
4	6:40	26:40
5	6:40	33:20
6	6:40	40:00
7	6:40	46:40
8	6:40	53:20
9	6:40	1:00:00
10	6:40	1:06:40

Splits per mile
Mile	Split	Elapsed
1	10:44	10:44
2	10:44	21:27
3	10:44	32:11
4	10:44	42:55
5	10:44	53:39
6	10:44	1:04:22
Final 0.214 mi	2:18	1:06:40

Equivalent times at other distances

Estimate

Estimated times at other distances (Riegel formula)
Distance	Estimated time
5K	31:59
10 miles	1:50:24
Half marathon	2:27:06
Marathon	5:06:41

These are estimates from the Riegel formula, T2 = T1 × (D2 ÷ D1)^1.06. They assume you’ve trained for the other distance, so treat them as a guide, not a promise.

Pace questions runners ask

How long is a marathon at 6:40/km?: At 6:40/km a marathon takes 4:41:18 and a half marathon 2:20:39.
What is 6:40 per km in minutes per mile?: 6:40/km is 10:44/mi.
What treadmill speed is 6:40 per km?: 6:40/km is 9.0 km/h, or 5.6 mph.