Online Timer
Product of Stuon
Pace Calculator
Know two of distance, time and pace? Get the third, with splits for every km or mile.
Calculate
Units
—
Splits
| Split | Split time | Elapsed |
|---|
How to use the pace calculator
- Choose what to calculate: pace, finish time or distance.
- Pick kilometers or miles, then fill in the other two values. Tap 5K, 10K, half or marathon to set the distance.
- Times accept 25:00 (minutes:seconds) or 1:45:00 (hours:minutes:seconds).
Pace formulas
Pace = time ÷ distance · Time = pace × distance · Distance = time ÷ pace. One mile is 1.609344 km.
Example: a 10K in 55:00 → 3,300 s ÷ 10 = 330 s = 5:30 per km (8:51 per mile, 10.9 km/h).
Pace chart: race finish times
| Pace /km | Pace /mi | 5K | 10K | Half | Marathon |
|---|---|---|---|---|---|
| 4:00 /km | 6:26 /mi | 0:20:00 | 0:40:00 | 1:24:23 | 2:48:47 |
| 4:30 /km | 7:15 /mi | 0:22:30 | 0:45:00 | 1:34:56 | 3:09:53 |
| 5:00 /km | 8:03 /mi | 0:25:00 | 0:50:00 | 1:45:29 | 3:30:59 |
| 5:30 /km | 8:51 /mi | 0:27:30 | 0:55:00 | 1:56:02 | 3:52:04 |
| 6:00 /km | 9:39 /mi | 0:30:00 | 1:00:00 | 2:06:35 | 4:13:10 |
| 6:30 /km | 10:28 /mi | 0:32:30 | 1:05:00 | 2:17:08 | 4:34:16 |
| 7:00 /km | 11:16 /mi | 0:35:00 | 1:10:00 | 2:27:41 | 4:55:22 |
Frequently asked questions
What pace do I need for a sub-2-hour half marathon?
Faster than 5:41 per km or 9:09 per mile. Holding 5:40/km finishes in about 1:59:33.
How do I convert pace per km to pace per mile?
Multiply the pace in seconds by 1.609344. A 5:00/km pace is 300 × 1.609344 = 483 s = 8:03 per mile.
How is pace different from speed?
Pace is time per distance (minutes per km); speed is distance per time (km/h). A 6:00/km pace equals 10 km/h.
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