
Rex says
Same equations the textbooks use — just way less awkward. Pop in your stats and I'll tell you what the number actually means for you.
Try a scenario
Click to load — tweak from there.Inputs
Result
Pace per km
5:00
Pace per mile
8:03
Speed (km/h)
12.00
Speed (mph)
7.46

Psst — share this and help Rex grow
One click, a permanent link with your numbers baked in.
How to use this
- 1Enter distance.
- 2Enter distance unit.
- 3Enter hours.
- 4Enter minutes.
- 5Enter seconds.
- 6Read your pace per km on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
Given a distance and finish time, compute pace per mile and per kilometer.
