Running Pace Calculator

Convert distance and finish time into pace per kilometre, pace per mile, and average running speed.

How running pace is calculated

Running pace is total elapsed time divided by distance. The calculator converts the same effort between kilometres and miles and reports average speed in both unit systems.

Average pace does not account for hills, weather, stops, GPS error, or pace changes. Use moving time or official race time consistently when comparing efforts.

Method and source:Exact distance-and-time calculation

Last reviewed: July 2026

How to use this calculator

Use the calculator as a practical starting point, then apply the result in the context of your training, recovery, and individual response.

1Enter the requested measurements or performance data.
2Choose the units and options that match your situation.
3Calculate, review the method and limitations, and adjust sensibly.

Frequently asked questions

How does this calculator work?

Running pace is total elapsed time divided by distance. The calculator converts the same effort between kilometres and miles and reports average speed in both unit systems.

How accurate is this calculator?

Average pace does not account for hills, weather, stops, GPS error, or pace changes. Use moving time or official race time consistently when comparing efforts.

Using your results

Every calculated 1RM is an estimate. Use the range as a training guide, and choose working weights that match your experience, technique, and current condition.