Half Marathon Pace Calculator
Half Marathon Pace Calculator
Estimate your half marathon finish time from your running pace and convert pace into mph and km/h.
Pace Converter
Enter your pace
Convert min/km or min/mile into speed and race finish times.
Quick presets
min/km
5:00
min/mile
8:03
km/h
12.00
mph
7.46
View race finish times
| Race | Finish |
|---|---|
| 5K | 25:00 |
| 10K | 50:00 |
| Half Marathon | 1:45:29 |
| Marathon | 3:30:59 |
Popular Half Marathon Pace Guides
How to calculate your half marathon time
A half marathon is 21.0975 kilometres long. Multiply your pace per kilometre by 21.0975 to estimate your finish time. For example, a pace of 5:00 per km gives an estimated half marathon time of around 1 hour and 45 minutes.