Free Online Running Pace Calculator
Calculate pace, finish time, or distance for a run.
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Per kilometre
Enter a distance and time to see your pace.
Paces are shown in minutes per kilometre and per mile. Distances use the 5K, 10K, half marathon (21.0975 km), and marathon (42.195 km) standards when a preset is selected.
Even splits per kilometre
| Distance | Cumulative time | Split pace |
|---|
About the Running Pace Calculator
Pace is the time it takes to cover a fixed distance, usually expressed in minutes per kilometre or per mile. Speed is the same information inverted: distance covered per hour. Runners tend to think in pace because it maps directly onto a watch display and makes race planning easier. This calculator converts between distance, time, and pace, so you can fill in whichever two values you know.
The three modes
In Pace mode you enter a distance and a finish time to get your pace and speed. In Time mode you enter a distance and a target pace to predict your finish time. In Distance mode you enter a time and a pace to find how far you can go. The results always show both kilometre and mile paces, plus speed in kilometres and miles per hour, because race distances and training plans often mix units.
The split table assumes an even effort, so every kilometre takes exactly the same time. Real races rarely work out that way, but even splits are a useful benchmark. Negative splits, where you run the second half slightly faster, often produce a better finish than starting too quickly and fading.
Frequently asked questions
What is a good pace?
It depends entirely on your fitness, the distance, and the conditions. A pace that feels easy for a 5K can be impossible in a marathon. Use your recent race times or a training plan as the reference.
Why does my watch pace differ from this result?
Watches use GPS, which can drift under trees, in tunnels, and around tall buildings. Treadmill distance also differs from outdoor running. Treat the calculated pace as a target rather than an exact measurement.
How do I convert pace per kilometre to pace per mile?
Multiply the pace per kilometre by 1.609344. For example, 5:00 per kilometre is about 8:03 per mile. This calculator handles the conversion for you in both directions.