Race time calculator
Pick a distance and your pace: you get your estimated finish time.
Distance
Pace
′min/km
- Finish time
- 1:00:00
- Speed
- 10 km/h
- Pace per mile
- 9'39/mi
Race times by pace
| Pace | 5K | 10K | Half marathon | Marathon |
|---|---|---|---|---|
| 4'00 /km | 20:00 | 40:00 | 1:24:23 | 2:48:47 |
| 4'15 /km | 21:15 | 42:30 | 1:29:40 | 2:59:20 |
| 4'30 /km | 22:30 | 45:00 | 1:34:56 | 3:09:53 |
| 4'45 /km | 23:45 | 47:30 | 1:40:13 | 3:20:26 |
| 5'00 /km | 25:00 | 50:00 | 1:45:29 | 3:30:59 |
| 5'15 /km | 26:15 | 52:30 | 1:50:46 | 3:41:31 |
| 5'30 /km | 27:30 | 55:00 | 1:56:02 | 3:52:04 |
| 5'45 /km | 28:45 | 57:30 | 2:01:19 | 4:02:37 |
| 6'00 /km | 30:00 | 1:00:00 | 2:06:35 | 4:13:10 |
| 6'15 /km | 31:15 | 1:02:30 | 2:11:52 | 4:23:43 |
| 6'30 /km | 32:30 | 1:05:00 | 2:17:08 | 4:34:16 |
| 6'45 /km | 33:45 | 1:07:30 | 2:22:24 | 4:44:49 |
| 7'00 /km | 35:00 | 1:10:00 | 2:27:41 | 4:55:22 |
| 7'15 /km | 36:15 | 1:12:30 | 2:32:57 | 5:05:55 |
| 7'30 /km | 37:30 | 1:15:00 | 2:38:14 | 5:16:28 |
How the time is worked out
Time = distance × pace. At 6'00/km, a 10K takes 10 × 6 minutes, i.e. 1:00:00. A half marathon at 5'30/km takes about 1:56.
The maths assumes an even pace from start to finish. In real life, hills, wind, heat and drink stations often add a few minutes.
Official distances
- 5K and 10K: the most popular distances, ideal for a first goal.
- Half marathon: 21.0975 km (13.1 miles).
- Marathon: 42.195 km (26.2 miles).
Frequently asked questions
How long does it take to run 5K?
25 to 35 minutes for most recreational runners: 30 minutes means 6'00/km. For a first 5K, 35 to 40 minutes is already great.
How long does it take to run 10K?
One hour at 6'00/km. Going under 50 minutes takes 5'00/km.
How long does a half marathon take?
At 6'00/km, about 2:07. Breaking 2 hours takes a pace of 5'41/km.