Running
Running Pace Calculator
Turn a distance and a time into pace per kilometre and per mile, plus speed. Deterministic and instant.
Free · instant · no sign-upDeterministic
Result
Pace5:00/ km
Time to cover one kilometre.
Pace8:03/ mi
Speed12km/h
Speed7.46mph
The formula
Pace = time ÷ distance
pace = total time ÷ distance
Source: Definition of average pace
What it means
- Pace tells you the time to cover one unit of distance — the number runners plan and race by.
- Speed is the same information expressed as distance per hour.
Limitations
- Average only — it hides positive or negative splits.
- Terrain, wind and heat change what a given pace costs you.
Educational only
This is a deterministic tool: the same inputs always give the same result. It is for learning and planning, not a substitute for coaching or measurement.
Questions
- How do I convert pace to speed?
- Speed (km/h) = 3600 ÷ pace-in-seconds-per-km. This tool shows both at once.
Keep exploring
Follow the threads from this tool into the wider knowledge base.