A pace of 10:40/mi is 6:38/km, or 9.1 km/h (5.6 mph). At that pace you finish a 5K in 33:08, a 10K in 1:06:17, a half marathon in 2:19:50 and a marathon in 4:39:40.
Try it at another distance
10K finish times around your target, in 5 seconds steps
Change
Time
Pace
−0:20
1:04:13
6:2510:20
−0:15
1:04:44
6:2810:25
−0:10
1:05:15
6:3110:30
−0:05
1:05:46
6:3510:35
Your target
/mi
+0:05
1:06:48
6:4110:45
+0:10
1:07:19
6:4410:50
+0:15
1:07:50
6:4710:55
+0:20
1:08:21
6:5011:00
Arrow keys nudge the value. Hold Shift for bigger steps.
Finish times at 10:40 per mile
Finish time at this pace for each distance
Distance
Finish time
1K
6:38
1 mile
10:40
5K
33:08
10K
1:06:17
10 miles
1:46:40
Half marathon
2:19:50
Marathon
4:39:40
50K
5:31:24
Splits
Splits per km
km
Split
Elapsed
1
6:38
6:38
2
6:38
13:15
3
6:38
19:53
4
6:38
26:31
5
6:38
33:08
6
6:38
39:46
7
6:38
46:24
8
6:38
53:01
9
6:38
59:39
10
6:38
1:06:17
Splits per mile
Mile
Split
Elapsed
1
10:40
10:40
2
10:40
21:20
3
10:40
32:00
4
10:40
42:40
5
10:40
53:20
6
10:40
1:04:00
Final 0.214 mi
2:17
1:06:17
Equivalent times at other distances
Estimate
Estimated times at other distances (Riegel formula)
Distance
Estimated time
5K
31:47
10 miles
1:49:45
Half marathon
2:26:14
Marathon
5:04:54
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.
10K 1:06:17
km6:38/km
16:38
213:15
319:53
426:31
533:08
639:46
746:24
853:01
959:39
101:06:17
mi10:40/mi
110:40
221:20
332:00
442:40
553:20
61:04:00
6.211:06:17
Pace questions runners ask
How long is a marathon at 10:40/mi?
At 10:40/mi a marathon takes 4:39:40 and a half marathon 2:19:50.