Running & Triathlon
⚡ Calculator

Running Speed Calculator

Enter your running speed in km/h or mph and instantly get your equivalent pace per kilometer, pace per mile, and finish times for every major race distance.

Use the Speed → Pace Calculator →

Speed to Pace Conversion Table

Speed (km/h)Pace (min/km)5K10KHalf MarathonMarathon
87:3037:301:15:002:38:145:16:29
96:4033:201:06:402:20:394:41:18
106:0030:001:00:002:06:354:13:10
115:2727:1654:331:55:053:50:09
125:0025:0050:001:45:563:29:08
134:3723:0546:091:37:223:14:44
144:1721:2642:511:30:123:00:25
154:0020:0040:001:24:232:48:17
163:4518:4537:301:19:042:38:09
183:2016:4033:201:10:132:20:25

Treadmill Speed to Running Pace

Most treadmills display speed in km/h (or mph in the US). Use the table above to find your equivalent outdoor running pace. Note that treadmill running at 1% incline roughly matches the effort of outdoor running on flat terrain.

💡 Treadmill tip: Set 1% incline to simulate outdoor running. At 12 km/h (5:00/km), 1% incline adds approximately 4–5 seconds per kilometer of equivalent effort.

Frequently Asked Questions

How do I convert km/h to min/km?

Pace (min/km) = 60 ÷ Speed (km/h). So 12 km/h = 60 ÷ 12 = 5:00/km.

What speed is a 5:00/km pace?

5:00 per kilometer equals 12 km/h (7.46 mph).

What treadmill speed is a 6:00/km pace?

6:00/km equals 10 km/h. On most treadmills this is the '10.0' setting.

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