Calculator comparison
Running Pace vs Speed
Pace is time per distance; speed is distance per time. Learn the reciprocal conversion, compare common running values and avoid averaging pace incorrectly.
Updated 16 October 2026 • Tools by Layna Editorial Team • General information
The units run in opposite directions
Running pace is usually minutes and seconds per kilometre (min/km) or per mile (min/mi). Speed is usually kilometres per hour (km/h) or miles per hour (mph). Lower pace means faster running; higher speed means faster running.
For decimal minutes per kilometre, speed in km/h = 60 ÷ pace. In the reverse direction, pace in min/km = 60 ÷ speed in km/h. Convert minutes:seconds to decimal minutes before division.
Worked example: 5:30 per kilometre
A pace of 5:30/km means 5 + 30/60 = 5.5 min/km. Speed is 60 ÷ 5.5 = 10.91 km/h. At that constant pace, 10 km takes 5.5 × 10 = 55 minutes.
A pace written as 5.30 decimal minutes would mean 5 minutes 18 seconds, not 5 minutes 30 seconds. The colon and decimal point are not interchangeable.
Quick pace and speed comparison
| Pace per km | Speed | Time for 5 km at constant pace |
|---|---|---|
| 4:00 | 15.00 km/h | 20:00 |
| 5:00 | 12.00 km/h | 25:00 |
| 5:30 | 10.91 km/h | 27:30 |
| 6:00 | 10.00 km/h | 30:00 |
| 7:30 | 8.00 km/h | 37:30 |
Use total time and total distance for the average
Running 1 km at 5:00/km and 1 km at 7:00/km takes 12 minutes across 2 km, so average pace is 6:00/km and average speed is 10 km/h.
If the segments have different distances, an unweighted average of the pace numbers is wrong. For 1 km at 5:00/km followed by 2 km at 7:00/km, total time is 19 minutes over 3 km: 6:20/km.
Choose pace for splits and finish-time planning, or speed when a treadmill uses km/h. Check whether your watch uses moving time or elapsed time; pauses change the average. Pace alone does not establish training intensity across hills, surfaces and weather.
Use the relevant calculator
Frequently asked questions
Does a lower pace mean slower running?
No. Lower time per kilometre means the kilometre is covered faster.
How fast is a 6:00/km pace?
60 ÷ 6 gives 10 km/h. At a constant pace, 5 km takes 30 minutes.
Can I average the pace from two runs?
Use their combined time divided by combined distance. An unweighted average works only in appropriate equal-distance cases.
Sources and method
The worked figures are illustrative arithmetic. The references below explain the underlying definitions and limits.