Calculate your running pace per km/mile and speed from distance and time. Free running pace calculator with formula, examples, and FAQ.
The running pace calculator helps runners determine their pace and speed from a given distance and time. Knowing your pace is essential for training, race planning, and tracking progress. Whether you are a beginner or experienced runner, understanding your pace helps you set realistic goals and avoid starting too fast in races.
Pace (min/km) = Total Time (minutes) / Distance (km)
Speed (km/h) = Distance (km) / Time (hours)Pace is the time it takes to cover one kilometer or mile, expressed in minutes and seconds per unit distance. Speed is the distance covered per unit of time (km/h or mph). Pace and speed are inversely related — a lower pace means a higher speed.
| Input | Output |
|---|---|
| 5 km in 25:00 | Pace: 5:00 min/km, Speed: 12.0 km/h |
| 10 km in 50:30 | Pace: 5:03 min/km, Speed: 11.9 km/h |
| 21.1 km (half marathon) in 1:45:00 | Pace: 4:59 min/km, Speed: 12.1 km/h |