How to Calculate Running Pace
Pace is simply your time divided by your distance, expressed as minutes and seconds per mile or per kilometer. It's the number runners actually train and race by, because it's steady across any distance — a comfortable 9:30 per mile feels the same whether you're running two miles or twelve. Enter how far you went and how long it took, and the calculator returns your pace, your speed, and handy race-distance projections.
Pace vs. speed
Pace (minutes per mile) and speed (miles per hour) are two views of the same thing, and different tools favor different ones — treadmills usually show speed, while running watches show pace. Lower pace numbers mean faster running, which trips people up, since with speed higher is faster. The calculator shows both so you can translate a treadmill's "6.2 mph" into the "9:41 per mile" your watch would display.
Using pace to plan races
Once you know your pace, you can predict finish times: multiply your per-mile pace by the race distance. The calculator does this for the 10K and half marathon automatically. One caveat — pace tends to drift slower over longer distances as fatigue sets in, so your true half-marathon pace is usually a bit slower than your 5K pace. Use the projection as a target to train toward, not a guarantee, and build up distance gradually.
Frequently asked questions
- How do I calculate my running pace?
- Divide your total time by the distance. For example, 27:30 over 5 km is a 5:30 per-kilometer pace.
- Is a lower pace faster?
- Yes — pace is time per distance, so a smaller number is quicker. That's the opposite of speed in mph.
- Will my 5K pace hold for a half marathon?
- Usually not quite — pace slows over longer distances. Treat the projection as a training target.