A pace of 3:30/km is 5:38/mi, or 17.1 km/h (10.7 mph). At that pace you finish a 5K in 17:30, a 10K in 35:00, a half marathon in 1:13:50 and a marathon in 2:27:41.
Try it at another distance
10K finish times around your target, in 5 seconds steps
Change
Time
Pace
−0:20
31:40
3:105:06
−0:15
32:30
3:155:14
−0:10
33:20
3:205:22
−0:05
34:10
3:255:30
Your target
/km
+0:05
35:50
3:355:46
+0:10
36:40
3:405:54
+0:15
37:30
3:456:02
+0:20
38:20
3:506:10
Arrow keys nudge the value. Hold Shift for bigger steps.
Finish times at 3:30 per km
Finish time at this pace for each distance
Distance
Finish time
1K
3:30
1 mile
5:38
5K
17:30
10K
35:00
10 miles
56:20
Half marathon
1:13:50
Marathon
2:27:41
50K
2:55:00
Splits
Splits per km
km
Split
Elapsed
1
3:30
3:30
2
3:30
7:00
3
3:30
10:30
4
3:30
14:00
5
3:30
17:30
6
3:30
21:00
7
3:30
24:30
8
3:30
28:00
9
3:30
31:30
10
3:30
35:00
Splits per mile
Mile
Split
Elapsed
1
5:38
5:38
2
5:38
11:16
3
5:38
16:54
4
5:38
22:32
5
5:38
28:10
6
5:38
33:48
Final 0.214 mi
1:12
35:00
Equivalent times at other distances
Estimate
Estimated times at other distances (Riegel formula)
Distance
Estimated time
5K
16:47
10 miles
57:57
Half marathon
1:17:13
Marathon
2:41:00
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 35:00
km3:30/km
13:30
27:00
310:30
414:00
517:30
621:00
724:30
828:00
931:30
1035:00
mi5:38/mi
15:38
211:16
316:54
422:32
528:10
633:48
6.2135:00
Pace questions runners ask
How long is a marathon at 3:30/km?
At 3:30/km a marathon takes 2:27:41 and a half marathon 1:13:50.