Your pace
Tempo. Comfortably hard. Sustainable for about an hour of honest effort.
Equivalent paces
- per kilometer
55 :0000 - per mile
88 :0303 - kilometers / hour
12.0012.00 - miles / hour
7.467.46
At this pace
- 1 mile
88 :0303 - 5K
2525 :0000 - 10K
5050 :0000 - Half marathon
11 :4545 :2929 - Marathon
33 :3030 :5959
This is the pace. Reshape builds the plan around it, then rewrites it when real life happens.
How pace actually works
Pace is time per unit of distance. Speed is distance per unit of time. They’re two ways of saying the same thing, and runners use pace because it’s easier to hold a target like “5:00/km” in your head than a target speed in km/h.
The math is one conversion factor: one mile is 1.609344 kilometers. So 5:00/km becomes 5 × 1.609344 = about 8:02/mile. That’s the whole trick. Every calculator on the internet is doing this multiplication and then reformatting the result.
Where pace gets interesting is what it means for you. 5:00/km is a sustainable marathon for a fit amateur and a hard tempo for someone building up. The same number describes very different efforts depending on who’s running. That’s why a training plan that adapts to your actual fitness beats one that hands everyone the same pace targets.