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Half marathon pace

1:45 half marathon pace

Per mile8:01
Per km4:59
Treadmill7.5 mph

To run a half marathon in 1:45:00, hold 8:01 per mile or 4:59 per kilometer the whole way. That is about 7.5 mph on a treadmill.

Splits at even pace

PointElapsed time
Mile 18:01
Mile 216:01
Mile 324:02
Mile 432:02
Mile 540:03
Mile 648:03
Mile 756:04
Mile 81:04:05
Mile 91:12:05
Mile 101:20:06
Mile 111:28:06
Mile 121:36:07
Mile 131:44:07
Finish1:45:00

Even pacing means running every mile at the same speed. Write two or three of these split times on your hand or set them as pace alerts on your watch, and check them as you pass the markers.

Same pace, other units

Per mile8:01
Per kilometer4:59
Per 400 m track lap1:59
Treadmill speed7.5 mph

A little faster or slower

How much each change in pace moves your finish time:

ChangePace per mileFinish time
-20 sec/mile7:411:40:38
-10 sec/mile7:511:42:49
-5 sec/mile7:561:43:54
+5 sec/mile8:061:46:06
+10 sec/mile8:111:47:11
+20 sec/mile8:211:49:22

What this time equals at other distances

RaceEquivalent time
5K22:50
10K47:35
Marathon3:38:55

Equivalents use Riegel's endurance formula (T2 = T1 x (D2/D1)^1.06) and assume equal training for each distance. Try your own in the race time predictor.

Other half marathon goal times

Frequently asked questions

What pace do I need for a 1:45 half marathon?

To run a half marathon in 1:45:00, hold 8:01 per mile or 4:59 per kilometer the whole way. That is about 7.5 mph on a treadmill.

What is a 1:45 half marathon equal to at other distances?

Using Riegel's endurance formula (exponent 1.06), it is roughly 5K 22:50, 10K 47:35, Marathon 3:38:55. Predictions assume equal training for each distance.

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